CVE-2026-0540

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can include payloads like in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

March 3, 2026

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit, github_release.
generic

DOMPurify XSS via Missing Rawtext Elements in SAFE_FOR_XML | Advisories | VulnCheck

https://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safe-for-xml
github_release Patch Available

DOMPurify 3.3.2

Patch available: cure53/DOMPurify 3.3.2

https://github.com/cure53/DOMPurify/releases/tag/3.3.2
github_commit Patch Available

commit 302b51de2253 (cure53/DOMPurify)

Patch available: cure53/DOMPurify 3.3.3 (contains commit 302b51de2253)

https://github.com/cure53/DOMPurify/commit/302b51de22535cc90235472c52e3401bedd46f80
generic

GitHub - cure53/DOMPurify: DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo: · GitHub

https://github.com/cure53/DOMPurify
generic

DOMPurify mXSS via Re-Contextualization | Fluid Attacks

https://fluidattacks.com/advisories/daft

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-dompurify2.4.1+dfsg+~2.4.0-1 ... 3.4.5+dfsg-1 (17 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.5+dfsg-1 (11 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2, 3.2.5+dfsg-13.3.2+dfsg-1—
npm(1)
PackageVulnerable rangeFixed inDependents
dompurify—2.5.9—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 18:36 UTCOSV refresh
  3. 2026-09-16 05:14 UTCEPSS rescore
  4. 2026-09-13 16:46 UTCEPSS rescore
  5. 2026-09-12 15:00 UTCEPSS rescore
  6. 2026-09-11 14:52 UTCEPSS rescore
  7. 2026-09-11 09:36 UTCEPSS rescore
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:11 UTCEPSS rescore
  13. 2026-09-01 13:53 UTCEPSS rescore
  14. 2026-09-01 04:39 UTCEPSS rescore
  15. 2026-08-30 22:04 UTCOSV refresh
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 01:21 UTCEPSS rescore
  18. 2026-08-28 21:40 UTCEPSS rescore
  19. 2026-08-27 14:24 UTCEPSS rescore
  20. 2026-08-25 13:48 UTCEPSS rescore
  21. 2026-08-23 00:19 UTCEPSS rescore
  22. 2026-08-21 23:48 UTCEPSS rescore
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-19 17:03 UTCEPSS rescore
  25. 2026-08-18 13:48 UTCEPSS rescore
Show 30 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 08:40 UTCEG score recompute
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 00:31 UTCEG score recompute
  7. 2026-08-12 13:50 UTCEPSS rescore
  8. 2026-08-11 13:42 UTCEPSS rescore
  9. 2026-08-11 08:00 UTCEG score recompute
  10. 2026-08-10 23:59 UTCEPSS rescore
  11. 2026-08-10 08:09 UTCEG score recompute
  12. 2026-08-09 13:46 UTCEPSS rescore
  13. 2026-08-09 08:17 UTCEG score recompute
  14. 2026-08-08 16:37 UTCEPSS rescore
  15. 2026-08-07 20:13 UTCEG score recompute
  16. 2026-08-06 13:46 UTCEPSS rescore
  17. 2026-08-06 02:46 UTCEG score recompute
  18. 2026-08-05 19:17 UTCEPSS rescore
  19. 2026-08-04 15:09 UTCEPSS rescore
  20. 2026-08-04 10:38 UTCEPSS rescore
  21. 2026-08-04 04:32 UTCEG score recompute
  22. 2026-08-03 10:35 UTCEPSS rescore
  23. 2026-08-02 19:07 UTCEG score recompute
  24. 2026-08-02 02:26 UTCEPSS rescore
  25. 2026-08-01 04:15 UTCEPSS rescore
  26. 2026-07-30 16:27 UTCEPSS rescore
  27. 2026-07-30 01:30 UTCEPSS rescore
  28. 2026-07-28 15:36 UTCEPSS rescore
  29. 2026-07-27 14:13 UTCEPSS rescore
  30. 2026-07-27 13:54 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-0540?
CVE-2026-0540 is a medium vulnerability published on March 3, 2026. DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFEFORXML regex.…
When was CVE-2026-0540 disclosed?
CVE-2026-0540 was first published in the National Vulnerability Database on March 3, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0540 actively exploited?
CVE-2026-0540 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.5% of all scored CVEs.
What is the CVSS score of CVE-2026-0540?
CVE-2026-0540 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-0540?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0540, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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