6.4

CVE-2020-36955: getgrav grav cms admin plugin Cross-site Scripting

CVSS: 6.4v3.1MediumDeferred
Published 26-01-2026Last modified 05-03-2026
Open JSON

Vulnerability summary

CVE-2020-36955 is a medium (CVSS 6.4) Cross-site Scripting vulnerability in getgrav grav cms admin plugin. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.64%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 26-01-2026
    PublishedVulnerability first disclosed.
  2. 05-03-2026
    Last modifiedVulnerability information updated.

Description

Grav CMS 1.6.30 with Admin Plugin 1.9.18 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the page title field. Attackers can create a new page with a malicious script in the title, which will be executed when the page is viewed in the admin panel or on the site.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

+0.04 pp

From 0.60% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.64%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasephpUnverified

    Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persistent Cross-Site Scripting

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Getgrav1 product

1 vendor · 1 product

References

3 links