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Not in CISA KEV
HIGH severity

CVE-2022-1555 — microweber

HIGHFix: microweber/microweber@724e2d1

CVE-2022-1555 is a high-severity (CVSS 8.8) Cross-site Scripting (XSS) vulnerability in microweber/microweber. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

DOM XSS in microweber ver 1.2.15 in microweber/microweber

Also known asGHSA-6346-5r4h-ff5x
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
1 known
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs70th percentile — riskier than 70% of all scored CVEsHighest risk
0.40%0.85%1.30%1.75%0.9%1.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘microweber/microweber

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

Microweber is a drag and drop website builder and a powerful next generation CMS. Microweber versions 1.2.15 and prior are vulnerable to cross-site scripting. This could lead to injection of arbitrary JaveScript code, defacement of a page, or stealing cookies. A patch is available on the master branch of Microweber's GitHub repository.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistmicroweber/microweberall versionsNo fix

Affected Products

1 product · 1 configurations
Application
microwebermicroweber
< 1.2.16
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

DOM XSS in microweber ver 1.2.15 in GitHub repository microweber/microwe…

huntr.devNVDMay 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Remediation status

    The records we use list no patched version of microweber/microweber for CVE-2022-1555. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Microweber is a drag and drop website builder and a powerful next generation CMS. Microweber versions 1.2.15 and prior are vulnerable to cross-site scripting. This could lead to injection of arbitrary JaveScript code, defacement of a page, or stealing cookies. A patch is available on the `master` branch of Microweber's GitHub repository.
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CVE-2022-1555: microweber XSS (High 8.8)