XSS in Realfavicongenerator Favicon By
CVE-2021-24437
The Favicon by RealFaviconGenerator WordPress plugin through 1.3.20 does not sanitise or escape one of its parameter before outputting it back in the response, leading to a Reflected Cross-Site Scripting (XSS) which is executed in the context of a logged administrator.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Realfavicongenerator Favicon By
- Favicon By Realfavicongenerator — versions 1.3.20
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/ed9d26be-cc96-4274-a05b-0b7ad9d8cfd9 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24437?
- CVE-2021-24437 is a medium-severity vulnerability in Realfavicongenerator Favicon By, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-08-30.
- How severe is CVE-2021-24437?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-24437 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.