CVE-2021-24591
MEDIUMCVSS 5.4/10EPSS 0.60%
Last modified
CVE-2021-24591 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The Highlight WordPress plugin before 0.9.3 does not sanitise its CustomCSS setting, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed. EPSS estimates a 0.60% chance of exploitation in the next 30 days.
Description
The Highlight WordPress plugin before 0.9.3 does not sanitise its CustomCSS setting, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dna88 | Highlight | < 0.9.3 |
References
- https://wpscan.com/vulnerability/c5cbe3b4-2829-4fd2-8194-4b3a2ae0e257Exploit, Third Party Advisory
- https://wpscan.com/vulnerability/c5cbe3b4-2829-4fd2-8194-4b3a2ae0e257Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-24591?
The Highlight WordPress plugin before 0.9.3 does not sanitise its CustomCSS setting, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
How severe is CVE-2021-24591?
CVE-2021-24591 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.
How do I fix CVE-2021-24591?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-24591?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST