CVE-2026-81778

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-08-31. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Subscriber Cross Site Scripting (XSS) in Kalles Addons <= 1.0.6 versions.

CVSS v3
6.5
EG Score
6.5(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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 31, 2026
Patch available.
generic Patch Available

Cross Site Scripting (XSS) in WordPress Kalles Addons Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/kalles-addons/vulnerability/wordpress-kalles-addons-plugin-1-0-6-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-81778(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 / 69× 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. 2026-09-25 05:11 UTCEG score recompute
  2. 2026-09-25 05:11 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 04:55 UTCEG score recompute
  5. 2026-09-24 04:55 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 04:40 UTCEG score recompute
  8. 2026-09-23 04:40 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 04:24 UTCEG score recompute
  11. 2026-09-22 04:24 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 04:09 UTCEG score recompute
  14. 2026-09-21 04:09 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 03:53 UTCEG score recompute
  17. 2026-09-20 03:53 UTCGHSA enrichment
  18. 2026-09-19 03:38 UTCEG score recompute
  19. 2026-09-19 03:37 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 03:22 UTCEG score recompute
  22. 2026-09-18 03:22 UTCGHSA enrichment
  23. 2026-09-17 03:06 UTCEG score recompute
  24. 2026-09-17 03:06 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 44 more
  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-16 02:26 UTCEG score recompute
  3. 2026-09-16 02:26 UTCGHSA enrichment
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-15 02:09 UTCGHSA enrichment
  7. 2026-09-14 01:50 UTCEG score recompute
  8. 2026-09-14 01:50 UTCGHSA enrichment
  9. 2026-09-13 01:35 UTCEG score recompute
  10. 2026-09-13 01:35 UTCGHSA enrichment
  11. 2026-09-12 01:19 UTCEG score recompute
  12. 2026-09-12 01:19 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 01:03 UTCEG score recompute
  16. 2026-09-11 01:03 UTCGHSA enrichment
  17. 2026-09-10 00:47 UTCGHSA enrichment
  18. 2026-09-09 00:32 UTCEG score recompute
  19. 2026-09-09 00:32 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 00:16 UTCEG score recompute
  22. 2026-09-08 00:16 UTCGHSA enrichment
  23. 2026-09-07 00:01 UTCEG score recompute
  24. 2026-09-07 00:00 UTCGHSA enrichment
  25. 2026-09-06 13:48 UTCEPSS rescore
  26. 2026-09-05 23:44 UTCEG score recompute
  27. 2026-09-05 23:44 UTCGHSA enrichment
  28. 2026-09-05 15:31 UTCEPSS rescore
  29. 2026-09-04 23:28 UTCEG score recompute
  30. 2026-09-04 23:28 UTCGHSA enrichment
  31. 2026-09-04 05:07 UTCEPSS rescore
  32. 2026-09-03 22:10 UTCGHSA enrichment
  33. 2026-09-02 21:16 UTCEG score recompute
  34. 2026-09-02 21:16 UTCGHSA enrichment
  35. 2026-09-02 14:12 UTCEPSS rescore
  36. 2026-09-01 21:01 UTCGHSA enrichment
  37. 2026-09-01 14:34 UTCEG score recompute
  38. 2026-09-01 14:34 UTCGHSA enrichment
  39. 2026-09-01 14:03 UTCEG score recompute
  40. 2026-09-01 14:02 UTCGHSA enrichment
  41. 2026-09-01 13:54 UTCEPSS rescore
  42. 2026-08-31 21:21 UTCEG score recompute
  43. 2026-08-31 20:40 UTCEG score recompute
  44. 2026-08-31 20:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81778?
CVE-2026-81778 is a medium vulnerability published on August 31, 2026. Subscriber Cross Site Scripting (XSS) in Kalles Addons <= 1.0.6 versions.
When was CVE-2026-81778 disclosed?
CVE-2026-81778 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81778 actively exploited?
CVE-2026-81778 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 88.4% of all scored CVEs.
What is the CVSS score of CVE-2026-81778?
CVE-2026-81778 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-81778?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81778, 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-2026-81778

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