CVE-2026-3129

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreHIGH confidence

Score 6.4 from GitHub Security Advisory published 2026-08-28. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted ` tag attributes in all versions up to, and including, 7.7. This is due to a flawed regular expression that is used to strip width and height` attributes from images when the "Lazy Load Images" and "Add Missing Sizes" features are enabled. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that execute whenever a user accesses an injected page.

CVSS v3
6.4
EG Score
6.4(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 29, 2026

References (4)

Vendor Advisories for CVE-2026-3129(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 16× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:08 UTCGHSA enrichment
  3. 2026-08-29 00:24 UTCEG score recompute
  4. 2026-08-29 00:24 UTCGHSA enrichment
  5. 2026-08-28 23:28 UTCEG score recompute
  6. 2026-08-28 23:27 UTCGHSA enrichment
  7. 2026-08-28 21:41 UTCEPSS rescore
  8. 2026-08-28 20:22 UTCEG score recompute
  9. 2026-08-28 20:21 UTCGHSA enrichment
  10. 2026-08-28 19:45 UTCEG score recompute
  11. 2026-08-28 19:45 UTCGHSA enrichment
  12. 2026-08-28 15:17 UTCEG score recompute
  13. 2026-08-28 15:17 UTCGHSA enrichment
  14. 2026-08-28 05:23 UTCEG score recompute
  15. 2026-08-28 04:58 UTCEG score recompute
  16. 2026-08-28 04:57 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-3129?
CVE-2026-3129 is a medium vulnerability published on August 28, 2026. The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via crafted <img> tag attributes in all versions up to, and including, 7.7. This is due to a flawed regular expression that is used to strip width and height attributes from images when the "Lazy Load Images" and…
When was CVE-2026-3129 disclosed?
CVE-2026-3129 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3129 actively exploited?
CVE-2026-3129 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 91.0% of all scored CVEs.
What is the CVSS score of CVE-2026-3129?
CVE-2026-3129 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-3129?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3129, 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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