CVE-2023-47271 — PKP-WAL (aka PKP Web Application Library or pkp-lib) before 3

PKP-WAL (aka PKP Web Application Library or pkp-lib) before 3.3.0-16, as used in Open Journal Systems (OJS) and other products, does not verify that the file named in an XML document (used for the native import/export plugin) is an image file, before trying to use it for an issue

01What is this vulnerability?

PKP-WAL (aka PKP Web Application Library or pkp-lib) before 3.3.0-16, as used in Open Journal Systems (OJS) and other products, does not verify that the file named in an XML document (used for the native import/export plugin) is an image file, before trying to use it for an issue cover image.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2023-11-05T00:00:00.000Z
• Last modified: 2024-11-26T21:28:25.376Z

09References

• github.com — https://github.com/pkp/pkp-lib/issues/9464
• packetstormsecurity.com — http://packetstormsecurity.com/files/176255/PKP-WAL-3.4.0-3-Remote-Code-Executio…
• seclists.org — http://seclists.org/fulldisclosure/2023/Dec/23