CVE-2022-4447 — The Fontsy WordPress plugin through 1

The Fontsy WordPress plugin through 1.8.6 does not properly sanitize and escape a parameter before using it in a SQL statement via an AJAX action available to unauthenticated users, leading to a SQL injection.

01What is this vulnerability?

The Fontsy WordPress plugin through 1.8.6 does not properly sanitize and escape a parameter before using it in a SQL statement via an AJAX action available to unauthenticated users, leading to a SQL injection.

02Affected products

Vendor	Product	Versions
Unknown	Fontsy	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: 2023-01-16T15:38:06.991Z
• Last modified: 2025-04-08T20:03:03.826Z

09References

• wpscan.com — https://wpscan.com/vulnerability/6939c405-ac62-4144-bd86-944d7b89d0ad