CVE-2023-44379 — baserCMS is a website development framework

baserCMS is a website development framework. Prior to version 5.0.9, there is a cross-site scripting vulnerability in the site search feature. Version 5.0.9 contains a fix for this vulnerability.

01What is this vulnerability?

baserCMS is a website development framework. Prior to version 5.0.9, there is a cross-site scripting vulnerability in the site search feature. Version 5.0.9 contains a fix for this vulnerability.

02Affected products

Vendor	Product	Versions
baserproject	basercms	< 5.0.9

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-02-22T14:47:14.333Z
• Last modified: 2025-04-22T16:19:39.790Z

09References

• github.com — https://github.com/baserproject/basercms/security/advisories/GHSA-66c2-p8rh-qx87
• github.com — https://github.com/baserproject/basercms/commit/18549396e5a9b8294306a54a876af164…
• basercms.net — https://basercms.net/security/JVN_73283159