5.4

CVE-2026-55805: drupal drupal core Cross-site Scripting

CVSS: 5.4v3.1MediumAwaiting analysis
Published 25-08-2026Last modified 26-08-2026
Open JSON

Vulnerability summary

CVE-2026-55805 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in drupal drupal core. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-08-2026
    PublishedVulnerability first disclosed.
  2. 26-08-2026
    Last modifiedVulnerability information updated.

Description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Stored XSS. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

+0.09 pp

From 0.13% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Drupal1 product
  • drupal core≥ 0.0.0, < 10.6.13 | ≥ 11.3.0, < 11.3.14 | ≥ 11.4.0, < 11.4.4 | ≥ 0.0.0, < 11.0.* | ≥ 0.0.0, < 11.1.* | ≥ 0.0.0, < 11.2.*

1 vendor · 1 product

References

1 links