4.7

CVE-2026-15917: drupal drupal core Cross-site Scripting

CVSS: 4.7v3.1MediumAwaiting analysis
Published 25-08-2026Last modified 26-08-2026
Open JSON

Vulnerability summary

CVE-2026-15917 is a medium (CVSS 4.7) Cross-site Scripting vulnerability in drupal drupal core. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.2% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · 0.00 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 Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.2.*.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.13% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.13%

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≥ 11.3.0, < 11.3.14 | ≥ 11.4.0, < 11.4.4 | ≥ 0.0.0, < 11.2.*

1 vendor · 1 product

References

1 links