CVE-2026-66706

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreHIGH confidence

Score 5.9 from GitHub Security Advisory published 2026-08-06. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

Author Cross Site Scripting (XSS) in Subscribe to Comments <= 2.3.1 versions.

CVSS v3
5.9
EG Score
5.9(high)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
Patch available.
generic Patch Available

Cross Site Scripting (XSS) in WordPress Subscribe to Comments Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/subscribe-to-comments/vulnerability/wordpress-subscribe-to-comments-plugin-2-3-1-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-66706(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 20× in last 7d / 41× 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. 2026-08-20 18:03 UTCGHSA enrichment
  2. 2026-08-19 18:50 UTCEG score recompute
  3. 2026-08-19 18:50 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-18 18:11 UTCEG score recompute
  6. 2026-08-18 18:11 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-17 17:09 UTCEG score recompute
  9. 2026-08-17 17:09 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-16 17:56 UTCEG score recompute
  12. 2026-08-16 17:56 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-15 18:43 UTCEG score recompute
  15. 2026-08-15 18:43 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 19:30 UTCEG score recompute
  18. 2026-08-14 19:30 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 20:17 UTCGHSA enrichment
  21. 2026-08-12 21:05 UTCGHSA enrichment
  22. 2026-08-12 17:38 UTCEG score recompute
  23. 2026-08-12 17:38 UTCGHSA enrichment
  24. 2026-08-12 13:51 UTCEPSS rescore
  25. 2026-08-11 18:25 UTCEG score recompute
Show 16 more
  1. 2026-08-11 18:25 UTCGHSA enrichment
  2. 2026-08-11 00:00 UTCEPSS rescore
  3. 2026-08-10 19:13 UTCGHSA enrichment
  4. 2026-08-09 20:00 UTCEG score recompute
  5. 2026-08-09 20:00 UTCGHSA enrichment
  6. 2026-08-09 13:47 UTCEPSS rescore
  7. 2026-08-08 20:48 UTCEG score recompute
  8. 2026-08-08 20:48 UTCGHSA enrichment
  9. 2026-08-08 16:37 UTCEPSS rescore
  10. 2026-08-07 21:35 UTCEG score recompute
  11. 2026-08-07 21:35 UTCGHSA enrichment
  12. 2026-08-06 22:22 UTCEG score recompute
  13. 2026-08-06 22:22 UTCGHSA enrichment
  14. 2026-08-06 15:27 UTCEG score recompute
  15. 2026-08-06 14:42 UTCEG score recompute
  16. 2026-08-06 14:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66706?
CVE-2026-66706 is a medium vulnerability published on August 6, 2026. Author Cross Site Scripting (XSS) in Subscribe to Comments <= 2.3.1 versions.
When was CVE-2026-66706 disclosed?
CVE-2026-66706 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66706 actively exploited?
CVE-2026-66706 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 95.4% of all scored CVEs.
What is the CVSS score of CVE-2026-66706?
CVE-2026-66706 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-66706?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66706, 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

Explore the affected products and dependency analysis for CVE-2026-66706

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