SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-21649

Jenkins Dashboard View Plugin 2.15 and earlier does not escape URLs referenced in Image Dashboard Portlets, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

MEDIUM 5.4EPSS 72.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 72.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

Jenkins Dashboard View Plugin 2.15 and earlier does not escape URLs referenced in Image Dashboard Portlets, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

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
72.68% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
jenkins/dashboard view
Source
jenkinsci-cert@googlegroups.com
EPSS trend
0%38%75%26 October 2026: 72.68%26 October 202626 October 2026

EPSS 72.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. 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.