CVE-2022-29430 — Cross-Site Scripting (XSS) vulnerability in KubiQ's PNG to JPG plugin <= 4

Cross-Site Scripting (XSS) vulnerability in KubiQ's PNG to JPG plugin <= 4.0 at WordPress via Cross-Site Request Forgery (CSRF). Vulnerable parameter &jpg_quality.

01What is this vulnerability?

Cross-Site Scripting (XSS) vulnerability in KubiQ's PNG to JPG plugin <= 4.0 at WordPress via Cross-Site Request Forgery (CSRF). Vulnerable parameter &jpg_quality.

02Affected products

Vendor	Product	Versions
KubiQ	PNG to JPG (WordPress plugin)	<= 4.0

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

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: 2022-05-20T20:44:52.437Z
• Last modified: 2025-02-20T20:20:57.083Z

09References

• wordpress.org — https://wordpress.org/plugins/png-to-jpg/#developers
• patchstack.com — https://patchstack.com/database/vulnerability/png-to-jpg/wordpress-png-to-jpg-pl…