SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-8811

Cross-site request forgery (CSRF) vulnerability in system/workplace/admin/accounts/user_role.jsp in OpenCMS 10.5.3 allows remote attackers to hijack the authentication of administrative users for requests that perform privilege escalation.

EXPLOITHIGH 8.8EPSS 2.11%

Does this matter?

A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 2.1%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

Cross-site request forgery (CSRF) vulnerability in system/workplace/admin/accounts/user_role.jsp in OpenCMS 10.5.3 allows remote attackers to hijack the authentication of administrative users for requests that perform privilege escalation. Note: It is argued that OpenCMS allows only registered users to upload different kind of content artifacts (SVG, .doc, .docx). The uploaded content is stored in the CMS content repository "as is". In case of scripts inside an SVG, this may or may not be "malicious", there is no way of knowing if the uploaded SVG contains the script for a reason. To exploit the "issue", a user must have an account in the CMS as a content manager

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
2.11% probability · 82th percentile
Public exploits
1 in Exploit-DB · first 2 April 2018
CISA KEV
Not listed
Weakness
CWE-352
Affected
alkacon/opencms
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.11%27 October 202627 October 2026

EPSS 2.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-44391source ↗OpenCMS 10.5.3 - Cross-Site Request Forgeryphp · Sureshbabu Narvaneniwebapps2 April 2018no

References

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