CVE-2023-3491 — Unrestricted Upload of File with Dangerous Type in GitHub repository fossbilling

Unrestricted Upload of File with Dangerous Type in GitHub repository fossbilling/fossbilling prior to 0.5.3.

01What is this vulnerability?

Unrestricted Upload of File with Dangerous Type in GitHub repository fossbilling/fossbilling prior to 0.5.3.

02Affected products

Vendor	Product	Versions
fossbilling	fossbilling/fossbilling	unspecified

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: 2023-06-30T21:11:09.527Z
• Last modified: 2024-11-04T20:57:03.914Z

09References

• huntr.dev — https://huntr.dev/bounties/043bd900-ac78-44d2-a340-84ddd0bc4a1d
• github.com — https://github.com/fossbilling/fossbilling/commit/2ddb7438ee0d05f9a9d01555edcfed…