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MEDIUM severity

Cross-site Scripting in microweberGHSA-38m9-3vg4-rwvp

MEDIUMFix: microweber/microweber@2b8fa5a

GHSA-38m9-3vg4-rwvp is a medium-severity (CVSS 6.5) Cross-site Scripting (XSS) vulnerability in microweber/microweber. 1 public exploit reference exists, so weaponization risk is real. A fix is available for microweber/microweber — see the affected versions and patch details below.

Also known asCVE-2022-0678
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs83th percentile — riskier than 83% of all scored CVEsHighest risk
0.40%1.19%1.98%2.77%1.2%2.3%Apr 26Aug 26Oct 26

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

How urgent is this, really

GHSA-38m9-3vg4-rwvp by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

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

Cross-site Scripting (XSS) - Reflected in Packagist microweber/microweber prior to 1.2.11.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmicroweber/microweberall versions1.2.11composer require microweber/microweber:^1.2.11

Affected Products

1 product · 1 configurations
Application
microwebermicroweber
< 1.2.11
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.

Cross-site Scripting (XSS) - Reflected in Packagist microweber/microwebe…

huntr.devNVDFeb 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. Fix

    Update microweber/microweber to 1.2.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-38m9-3vg4-rwvp is resolved across your whole dependency graph.

  3. Workarounds

    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.

How to detect GHSA-38m9-3vg4-rwvp

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id ghsa-38m9-3vg4-rwvp -u https://target
Template
Microweber <1.2.11 - Cross-Site Scripting
Severity
medium
Impact
Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.
Remediation
Upgrade Microweber CMS to version 1.2.11 or later, which includes a fix for this vulnerability.

Template by ProjectDiscovery nuclei-templates (tess, co5mos), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

microweber prior to version 1.2.11 is vulnerable to cross-site scripting.
O3 Security · Impact-Aware SCA

Is GHSA-38m9-3vg4-rwvp in your dependencies?

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Cross-site Scripting in microweber (Medium 6.5)