CVE-2023-41330 — knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generati

knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. ## Issue

01What is this vulnerability?

knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. ## Issue

02Affected products

Vendor	Product	Versions
KnpLabs	snappy	< 1.4.3

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: 2023-09-06T17:33:21.098Z
• Last modified: 2024-09-30T15:54:18.428Z

09References

• github.com — https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj
• github.com — https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc
• github.com — https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67…