XSS in Fontsplugin Fonts
CVE-2021-24637
The Google Fonts Typography WordPress plugin before 3.0.3 does not escape and sanitise some of its block settings, allowing users with as role as low as Contributor to perform Stored Cross-Site Scripting attacks via blockType (combined with content), align, color, variant and fontID argument of a Gutenberg block.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Fontsplugin Fonts
- Fonts Plugin | Google Typography — versions 3.0.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/dd2b3f22-5e8b-41cf-bcb8-d2e673e1d21e (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24637?
- CVE-2021-24637 is a medium-severity vulnerability in Fontsplugin Fonts, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-09-20.
- How severe is CVE-2021-24637?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24637 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.