VulnerabilityModified
CVE-2021-27279
MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).
MEDIUM 5.4EPSS 0.96%
Does this matter?
Lower severity and a low EPSS score (0.96%). Track it; it rarely justifies an emergency change on its own.
Description
MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- mybb/mybb
- Source
- cve@mitre.org
References
- https://github.com/mybb/mybb/commit/cb781b49116bf5c4d8deca3e17498122b701677aPatch, Third Party Advisory
- https://github.com/mybb/mybb/security/advisories/GHSA-6483-hcpp-p75wExploit, Third Party Advisory
- https://mybb.com/versions/1.8.25/Release Notes, Vendor Advisory
- https://github.com/mybb/mybb/commit/cb781b49116bf5c4d8deca3e17498122b701677aPatch, Third Party Advisory
- https://github.com/mybb/mybb/security/advisories/GHSA-6483-hcpp-p75wExploit, Third Party Advisory
- https://mybb.com/versions/1.8.25/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.