CVE-2023-43647 — baserCMS is a website development framework

baserCMS is a website development framework. Prior to version 4.8.0, there is a cross-site scripting vulnerability in the file upload feature of baserCMS. Version 4.8.0 contains a patch for this issue.

01What is this vulnerability?

baserCMS is a website development framework. Prior to version 4.8.0, there is a cross-site scripting vulnerability in the file upload feature of baserCMS. Version 4.8.0 contains a patch for this issue.

02Affected products

Vendor	Product	Versions
baserproject	basercms	< 4.8.0

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

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

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: 2023-10-30T18:18:35.381Z
• Last modified: 2024-09-06T20:13:17.297Z

09References

• github.com — https://github.com/baserproject/basercms/security/advisories/GHSA-ggj4-78rm-6xgv
• github.com — https://github.com/baserproject/basercms/commit/eb5977533d05db4f3bb03bd19630b660…
• basercms.net — https://basercms.net/security/JVN_24381990