CVE-2023-25655 — baserCMS is a Content Management system

baserCMS is a Content Management system. Prior to version 4.7.5, any file may be uploaded on the management system of baserCMS. Version 4.7.5 contains a patch.

01What is this vulnerability?

baserCMS is a Content Management system. Prior to version 4.7.5, any file may be uploaded on the management system of baserCMS. Version 4.7.5 contains a patch.

02Affected products

Vendor	Product	Versions
baserproject	basercms	< 4.7.5

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: 2023-03-23T19:23:58.897Z
• Last modified: 2025-02-25T14:50:52.950Z

09References

• github.com — https://github.com/baserproject/basercms/security/advisories/GHSA-mfvg-qwcw-qvc8
• github.com — https://github.com/baserproject/basercms/commit/922025a98b0e697ab78f6a785a004e07…
• github.com — https://github.com/baserproject/basercms/commit/9297629983ed908c7f51bf61a0231dde…
• github.com — https://github.com/baserproject/basercms/releases/tag/basercms-4.7.5