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Not in CISA KEV
HIGH severity

baserCMS is Vulnerable to Cross-site ScriptingGHSA-677c-xv24-crgx

HIGH

GHSA-677c-xv24-crgx is a high-severity (CVSS 7.1) Cross-site Scripting (XSS) vulnerability in baserproject/basercms. A fix is available for baserproject/basercms — see the affected versions and patch details below.

Also known asCVE-2026-32734
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-677c-xv24-crgx.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs19th percentile — riskier than 19% of all scored CVEsHighest risk
0.00%0.28%0.55%0.83%0.0%0.3%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
🐘baserproject/basercms

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

baserCMS has DOM-based cross-site scripting in tag creation.

Target

baserCMS 5.2.2 and earlier versions

Vulnerability

Malicious JavaScript may be executed when creating a tag.

Countermeasures

Update to the latest version of baserCMS

Please refer to the following page to reference for more information. https://basercms.net/security/JVN_94952030

Credits

  • quanlna2 (Le Nguyen Anh Quan)
  • namdi (Do Ich Nam)
  • minhnn42 (Nguyen Ngoc Minh)
  • VCSLab - Viettel Cyber Security

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistbaserproject/basercmsall versions5.2.3composer require baserproject/basercms:^5.2.3

Affected Products

1 product · 1 configurations
Application
basercmsbasercms
< 5.2.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update baserproject/basercms to 5.2.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-677c-xv24-crgx 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.

Frequently Asked Questions

baserCMS has DOM-based cross-site scripting in tag creation. ### Target baserCMS 5.2.2 and earlier versions ### Vulnerability Malicious JavaScript may be executed when creating a tag. ### Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN_94952030 ### Credits - quanlna2 (Le Nguyen Anh Quan) - namdi (Do Ich Nam) - minhnn42 (Nguyen Ngoc Minh) - VCSLab - Viettel Cyber Security
O3 Security · Impact-Aware SCA

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baserCMS is Vulnerable to Cross-site Scripting (High 7.1)