CVE-2021-27520
MEDIUMCVSS 6.1/10EPSS 6.40%
Last modified
CVE-2021-27520 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.. EPSS estimates a 6.40% chance of exploitation in the next 30 days.
Description
A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fudforum | Fudforum | 3.1.0 |
References
- http://packetstormsecurity.com/files/162942/FUDForum-3.1.0-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/fudforum/FUDforum/issues/2Exploit, Issue Tracking, Patch, Third Party Advisory
- http://packetstormsecurity.com/files/162942/FUDForum-3.1.0-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/fudforum/FUDforum/issues/2Exploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27520?
A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter.
How severe is CVE-2021-27520?
CVE-2021-27520 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 6.40% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27520?
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-2021-27520?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST