BuddyBoss Platform through 1.8.0 allows XSS via the Group Name or Group Description field.

published 2022-01-26 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-30272

cvss: 5.4; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

cygenta.co.uk https://www.cygenta.co.uk/post/buddyboss referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

cygenta.co.uk /post/buddyboss
exploit, mitigation, third-party-advisory
buddyboss.com /resources/buddyboss-platform-releases/
release-notes, vendor-advisory

Sources

CVE List CVE-2021-43334
NVD CVE-2021-43334

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary