CVE-2024-26466: A DOM based cross-site scripting (XSS) vulnerability in the component /dom/ranges/Range-test-iframe.html of we

Routine

MEDIUM 6.1MITIGATE

CVE-2024-26466 is a medium-severity flaw (CVSS 6.1) affecting web-platform-tests. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A DOM based cross-site scripting (XSS) vulnerability in the component /dom/ranges/Range-test-iframe.html of web-platform-tests/wpt before commit 938e843 allows attackers to execute arbitrary Javascript via sending a crafted URL.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-02-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: web-platform-tests

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-02-26 16:27 UTCPublished CVE record published
2026-06-17 07:17 UTCUpdated Record last modified

web-platform-tests web-platform-tests MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy web-platform-tests || rpm -q web-platform-tests || web-platform-tests --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-26466?

web-platform-tests: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-26466 being exploited?

CVE-2024-26466 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-26466 affect?

CVE-2024-26466 affects web-platform-tests. Severity is medium (CVSS 6.1). A DOM based cross-site scripting (XSS) vulnerability in the component /dom/ranges/Range-test-iframe.html of web-platform-tests/wpt before commit 938e843 allows attackers to execute arbitrary Javascript via sending a crafted URL.

How urgent is CVE-2024-26466?

Priority 31/100. No elevated risk signals yet.

References

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