What is CVE-2026-42841?

CVE-2026-42841 is a medium-severity vulnerability in Getgrav Grav, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-05-11.

How severe is CVE-2026-42841?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Getgrav Grav

CVE-2026-42841

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, an authenticated user with page editing permissions can inject an executable JavaScript event-handler attribute into rendered image HTML through Grav's Markdown media action syntax…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Getgrav Grav — versions < 2.0.0-beta.2, 2.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-42841?: CVE-2026-42841 is a medium-severity vulnerability in Getgrav Grav, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-05-11.
How severe is CVE-2026-42841?: Medium severity. CVSS v3 base score is 4.8 out of 10.