8.5

CVE-2026-42612: Grav: Publisher-Level Stored XSS via Unquoted Event Attributes

Analyzed
Published 11-05-2026Last modified 11-05-2026

Vulnerability summary

CVE-2026-42612 is a high (CVSS 8.5) Cross-site Scripting vulnerability in getgrav grav. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
44/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 11-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a stored Cross-Site Scripting (XSS) vulnerability in getgrav/grav allows publisher-level accounts to execute arbitrary JavaScript. The issue arises from a blacklist bypass in the detectXss() function when handling unquoted HTML event attributes. This vulnerability is fixed in 2.0.0-beta.2.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

Increase +0.04 pp

From 0.24% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Grav

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Getgrav1 product
  • grav< 2.0.0-beta.2 | ≤ 1.8.0 | 2.0.0:beta1

1 vendor · 1 product

References

2 links