SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-28561

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files.

MEDIUM 4.8EPSS 0.27%

Does this matter?

Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.

Description

wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files. On multisite installations or with a compromised admin account, attackers set a forum description containing HTML event handlers that execute when any user views the forum listing.

CVSS 4.0
4.8 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.27% probability · 18th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
gvectors/wpforo forum
Source
disclosure@vulncheck.com
EPSS trend
0%3%5%26 October 2026: 0.27%26 October 202626 October 2026

EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.