CVE-2021-28968

5.4 mediumEPSS 0.5%

Medium (5.4) in gnu punbb. EPSS 0.5% chance of exploitation in the next 30 days.

An issue was discovered in PunBB before 1.4.6. An XSS vulnerability in the [email] BBcode tag allows (with authentication) injecting arbitrary JavaScript into any forum message.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-03-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

gnu:punbb

References

https://punbb.informer.com/
https://punbb.informer.com/

Check your stack JSON