CVE-2023-53929 — phpMyFAQ 3

phpMyFAQ 3.1.12 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into their profile names. Attackers can modify their user profile name with a payload like 'calc|a!z|' to trigger code execution when an administrator exp

01What is this vulnerability?

phpMyFAQ 3.1.12 contains a CSV injection vulnerability that allows authenticated users to inject malicious formulas into their profile names. Attackers can modify their user profile name with a payload like 'calc|a!z|' to trigger code execution when an administrator exports user data as a CSV file.

02Affected products

Vendor	Product	Versions
Phpmyfaq	phpMyFAQ	3.1.12

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: 2025-12-17T22:44:57.447Z
• Last modified: 2026-03-05T12:03:05.159Z

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/51399
• www.phpmyfaq.de — https://www.phpmyfaq.de/
• www.vulncheck.com — https://www.vulncheck.com/advisories/phpmyfaq-csv-injection-via-user-profile-exp…