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MEDIUM severity

CVE-2024-29376 sylius/sylius

MEDIUMFix: Sylius/Sylius@fb0ecb2

CVE-2024-29376 is a medium-severity (CVSS 6.4) Cross-site Scripting (XSS) vulnerability in sylius/sylius. A fix is available for sylius/sylius — see the affected versions and patch details below.

Sylius has potential Cross Site Scripting vulnerability via the "Province" field in the Checkout and Address Book

Also known asGHSA-7prj-9ccr-hr3q
Published
Apr 22, 2024
Updated
Aug 12, 2026
Affected
5 pkgs
Patched
5 / 5
Exploits
None indexed
Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-29376.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs36th percentile — riskier than 36% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

CVE-2024-29376 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

5 pkgs affected
🐘sylius/sylius🐘sylius/sylius🐘sylius/sylius🐘sylius/sylius🐘sylius/sylius

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Impact

There is a possibility to save XSS code in province field in the Checkout and Address Book and then execute it on these pages. The problem occurs when you open the address step page in the checkout or edit the address in the address book. This only affects the base UI Shop provided by Sylius.

Patches

The issue is fixed in versions: 1.9.12, 1.10.16, 1.11.17, 1.12.16, 1.13.1 and above.

Workarounds

  1. Create new file assets/shop/sylius-province-field.js:
// assets/shop/sylius-province-field.js

function sanitizeInput(input) {
  const div = document.createElement('div');
  div.textContent = input;
  return div.innerHTML; // Converts text content to plain HTML, stripping any scripts
}

const getProvinceInputValue = function getProvinceInputValue(valueSelector) {
  return valueSelector == undefined ? '' : `value="${sanitizeInput(valueSelector)}"`;
};

$.fn.extend({
  provinceField() {
    const countrySelect = $('select[name$="[countryCode]"]');

    countrySelect.on('change', (event) => {
      const select = $(event.currentTarget);
      const provinceContainer = select.parents('.field').next('div.province-container');

      const provinceSelectFieldName = select.attr('name').replace('country', 'province');
      const provinceInputFieldName = select.attr('name').replace('countryCode', 'provinceName');

      const provinceSelectFieldId = select.attr('id').replace('country', 'province');
      const provinceInputFieldId = select.attr('id').replace('countryCode', 'provinceName');

      const form = select.parents('form');

      if (select.val() === '' || select.val() == undefined) {
        provinceContainer.fadeOut('slow', () => {
          provinceContainer.html('');
        });

        return;
      }

      provinceContainer.attr('data-loading', true);
      form.addClass('loading');

      $.get(provinceContainer.attr('data-url'), { countryCode: select.val() }, (response) => {
        if (!response.content) {
          provinceContainer.fadeOut('slow', () => {
            provinceContainer.html('');

            provinceContainer.removeAttr('data-loading');
            form.removeClass('loading');
          });
        } else if (response.content.indexOf('select') !== -1) {
          provinceContainer.fadeOut('slow', () => {
            const provinceSelectValue = getProvinceInputValue((
              $(provinceContainer).find('select > option[selected$="selected"]').val()
            ));

            provinceContainer.html((
              response.content
                .replace('name="sylius_address_province"', `name="${provinceSelectFieldName}"${provinceSelectValue}`)
                .replace('id="sylius_address_province"', `id="${provinceSelectFieldId}"`)
                .replace('option value="" selected="selected"', 'option value=""')
                .replace(`option ${provinceSelectValue}`, `option ${provinceSelectValue}" selected="selected"`)
            ));
            provinceContainer.addClass('required');
            provinceContainer.removeAttr('data-loading');

            provinceContainer.fadeIn('fast', () => {
              form.removeClass('loading');
            });
          });
        } else {
          provinceContainer.fadeOut('slow', () => {
            const provinceInputValue = getProvinceInputValue($(provinceContainer).find('input').val());

            provinceContainer.html((
              response.content
                .replace('name="sylius_address_province"', `name="${provinceInputFieldName}"${provinceInputValue}`)
                .replace('id="sylius_address_province"', `id="${provinceInputFieldId}"`)
            ));

            provinceContainer.removeAttr('data-loading');

            provinceContainer.fadeIn('fast', () => {
              form.removeClass('loading');
            });
          });
        }
      });
    });

    if (countrySelect.val() !== '') {
      countrySelect.trigger('change');
    }

    if ($.trim($('div.province-container').text()) === '') {
      $('select.country-select').trigger('change');
    }

    const shippingAddressCheckbox = $('input[type="checkbox"][name$="[differentShippingAddress]"]');
    const shippingAddressContainer = $('#sylius-shipping-address-container');
    const toggleShippingAddress = function toggleShippingAddress() {
      shippingAddressContainer.toggle(shippingAddressCheckbox.prop('checked'));
    };
    toggleShippingAddress();
    shippingAddressCheckbox.on('change', toggleShippingAddress);
  },
});
  1. Add new import in assets/shop/entry.js:
// assets/shop/entry.js
// ...
import './sylius-province-field';
  1. If you're using Gulp, update your gulpfile.babel.js:
  import chug from 'gulp-chug';
+ import concat from 'gulp-concat';
  import gulp from 'gulp';
  import yargs from 'yargs';

  const { argv } = ...

+ const rootPath = argv.rootPath || 'public/assets';
+ 
  const config = [...];
    '--rootPath',
    argv.rootPath || '../../../../../../../public/assets',
    '--nodeModulesPath',
    argv.nodeModulesPath || '../../../../../../../node_modules',
  ];

  ...

  export const buildShop = ...

+ export const patchShopJs = function patchShopJs() {
+   return gulp.src([
+     `${rootPath}/shop/js/app.js`,
+     'assets/shop/sylius-province-field.js',
+   ])
+     .pipe(concat('app.js'))
+     .pipe(gulp.dest(`${rootPath}/shop/js`));
+ };
+ patchShopJs.description = 'Append shop security patches to built app.js.';

 ...

- export const build = gulp.parallel(buildAdmin, buildShop);
+ export const build = gulp.series(
+   gulp.parallel(buildAdmin, buildShop),
+   patchShopJs,
+ );

 ...

- gulp.task('shop', buildShop);
+ gulp.task('shop', gulp.series(buildShop, patchShopJs));

  ...
  1. Rebuild your assets:
yarn build

Acknowledgements

This security issue has been reported by @r2tunes, thank you!

References

For more information

If you have any questions or comments about this advisory:

Affected Packages

5 total 5 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistsylius/syliusall versions1.9.12composer require sylius/sylius:^1.9.12
🐘Packagistsylius/sylius1.10.0-alpha.1&&< 1.10.161.10.16composer require sylius/sylius:^1.10.16
🐘Packagistsylius/sylius1.11.0-alpha.1&&< 1.11.171.11.17composer require sylius/sylius:^1.11.17
🐘Packagistsylius/sylius1.12.0-alpha.1&&< 1.12.161.12.16composer require sylius/sylius:^1.12.16
🐘Packagistsylius/sylius1.13.0-alpha.1&&< 1.13.11.13.1composer require sylius/sylius:^1.13.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sylius/sylius, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update sylius/sylius to 1.9.12 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-29376 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-29376 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2024-29376. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact There is a possibility to save XSS code in province field in the Checkout and Address Book and then execute it on these pages. The problem occurs when you open the address step page in the checkout or edit the address in the address book. This only affects the base UI Shop provided by Sylius. ### Patches The issue is fixed in versions: 1.9.12, 1.10.16, 1.11.17, 1.12.16, 1.13.1 and above. ### Workarounds 1. Create new file `assets/shop/sylius-province-field.js`: ```js // assets/shop/sylius-province-field.js function sanitizeInput(input) { const div = document.createElement('d
O3 Security · Impact-Aware SCA

Is CVE-2024-29376 in your dependencies?

O3 Security finds CVE-2024-29376 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2024-29376: sylius/sylius (Medium 6.4) | O3 Security