CVE-2026-23929

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-18. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype chain.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Aug 18, 2026
Patch available.
generic

Loading...

https://support.zabbix.com/browse/ZBX-28068

Vendor Advisories for CVE-2026-23929(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:6.0.14+dfsg-1 ... 1:7.0.9+dfsg-1~bpo12+1 (29 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:7.0.10+dfsg-2 ... 1:7.0.29+dfsg-2~bpo13+1 (9 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
zabbix1:7.0.10+dfsg-2, 1:7.0.22+dfsg-1, 1:7.0.22+dfsg-1.1, 1:7.0.22+dfsg-1~bpo13+1, 1:7.0.22+dfsg-1~deb13u1
  • every version up to 1:7.0.27+dfsg-1: fixed in 1:7.0.27+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 78× 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.

Showing the most recent 100 of 153 total refreshes for this CVE.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 21:46 UTCGHSA enrichment
  3. 2026-10-03 17:43 UTCEG score recompute
  4. 2026-10-03 17:43 UTCGHSA enrichment
  5. 2026-10-02 09:13 UTCEG score recompute
  6. 2026-10-02 09:13 UTCGHSA enrichment
  7. 2026-10-01 19:49 UTCEPSS rescore
  8. 2026-10-01 09:27 UTCEG score recompute
  9. 2026-10-01 09:27 UTCGHSA enrichment
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-30 09:55 UTCEG score recompute
  12. 2026-09-30 09:55 UTCGHSA enrichment
  13. 2026-09-29 15:21 UTCEPSS rescore
  14. 2026-09-29 06:55 UTCEG score recompute
  15. 2026-09-29 06:55 UTCGHSA enrichment
  16. 2026-09-28 13:51 UTCEPSS rescore
  17. 2026-09-28 07:29 UTCEG score recompute
  18. 2026-09-28 07:29 UTCGHSA enrichment
  19. 2026-09-27 13:47 UTCEPSS rescore
  20. 2026-09-27 08:02 UTCEG score recompute
  21. 2026-09-27 08:02 UTCGHSA enrichment
  22. 2026-09-26 15:58 UTCEPSS rescore
  23. 2026-09-26 00:26 UTCEPSS rescore
  24. 2026-09-25 08:04 UTCEG score recompute
  25. 2026-09-25 08:04 UTCGHSA enrichment
Show 75 more
  1. 2026-09-24 14:03 UTCEPSS rescore
  2. 2026-09-24 08:37 UTCGHSA enrichment
  3. 2026-09-23 09:10 UTCEG score recompute
  4. 2026-09-23 09:10 UTCGHSA enrichment
  5. 2026-09-22 09:44 UTCEG score recompute
  6. 2026-09-22 09:44 UTCGHSA enrichment
  7. 2026-09-21 09:52 UTCEG score recompute
  8. 2026-09-21 09:52 UTCGHSA enrichment
  9. 2026-09-20 20:15 UTCEPSS rescore
  10. 2026-09-20 10:25 UTCEG score recompute
  11. 2026-09-20 10:25 UTCGHSA enrichment
  12. 2026-09-19 10:57 UTCEG score recompute
  13. 2026-09-19 10:57 UTCGHSA enrichment
  14. 2026-09-18 19:27 UTCEPSS rescore
  15. 2026-09-18 11:18 UTCEG score recompute
  16. 2026-09-18 11:18 UTCGHSA enrichment
  17. 2026-09-17 11:51 UTCEG score recompute
  18. 2026-09-17 11:51 UTCGHSA enrichment
  19. 2026-09-16 14:07 UTCEPSS rescore
  20. 2026-09-16 12:24 UTCEG score recompute
  21. 2026-09-16 12:23 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 12:57 UTCEG score recompute
  24. 2026-09-15 12:57 UTCGHSA enrichment
  25. 2026-09-14 12:56 UTCEG score recompute
  26. 2026-09-14 12:56 UTCGHSA enrichment
  27. 2026-09-13 16:47 UTCEPSS rescore
  28. 2026-09-13 13:29 UTCEG score recompute
  29. 2026-09-13 13:29 UTCGHSA enrichment
  30. 2026-09-12 15:01 UTCEPSS rescore
  31. 2026-09-12 14:02 UTCGHSA enrichment
  32. 2026-09-11 14:35 UTCEG score recompute
  33. 2026-09-11 14:35 UTCGHSA enrichment
  34. 2026-09-10 15:08 UTCEG score recompute
  35. 2026-09-10 15:08 UTCGHSA enrichment
  36. 2026-09-10 09:34 UTCEPSS rescore
  37. 2026-09-09 15:40 UTCEG score recompute
  38. 2026-09-09 15:40 UTCGHSA enrichment
  39. 2026-09-08 22:00 UTCEPSS rescore
  40. 2026-09-08 16:12 UTCEG score recompute▼ 3.10
  41. 2026-09-08 16:12 UTCGHSA enrichment
  42. 2026-09-08 15:27 UTCNVD updateCVSS v3 → 5.4 · severity → MEDIUM
  43. 2026-09-07 22:10 UTCEG score recompute
  44. 2026-09-07 22:10 UTCGHSA enrichment
  45. 2026-09-07 16:01 UTCEPSS rescore
  46. 2026-09-07 10:30 UTCGHSA enrichment
  47. 2026-09-06 20:33 UTCEG score recompute
  48. 2026-09-06 20:33 UTCGHSA enrichment
  49. 2026-09-06 13:47 UTCEPSS rescore
  50. 2026-09-06 13:47 UTCEPSS rescore
  51. 2026-09-06 08:52 UTCGHSA enrichment
  52. 2026-09-05 21:13 UTCEG score recompute
  53. 2026-09-05 21:13 UTCGHSA enrichment
  54. 2026-09-05 09:34 UTCGHSA enrichment
  55. 2026-09-04 21:55 UTCEG score recompute
  56. 2026-09-04 21:55 UTCGHSA enrichment
  57. 2026-09-04 10:15 UTCEG score recompute
  58. 2026-09-04 10:15 UTCGHSA enrichment
  59. 2026-09-04 05:06 UTCEPSS rescore
  60. 2026-09-03 22:36 UTCGHSA enrichment
  61. 2026-09-03 09:41 UTCGHSA enrichment
  62. 2026-09-02 22:01 UTCEG score recompute
  63. 2026-09-02 22:01 UTCGHSA enrichment
  64. 2026-09-02 14:11 UTCEPSS rescore
  65. 2026-09-02 08:47 UTCGHSA enrichment
  66. 2026-09-01 21:03 UTCEG score recompute
  67. 2026-09-01 21:03 UTCGHSA enrichment
  68. 2026-09-01 13:53 UTCEPSS rescore
  69. 2026-09-01 09:38 UTCEG score recompute
  70. 2026-09-01 09:37 UTCGHSA enrichment
  71. 2026-09-01 04:39 UTCEPSS rescore
  72. 2026-08-31 20:19 UTCGHSA enrichment
  73. 2026-08-31 05:54 UTCEG score recompute
  74. 2026-08-31 05:54 UTCGHSA enrichment
  75. 2026-08-30 19:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-23929?
CVE-2026-23929 is a medium vulnerability published on August 18, 2026. Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like proto, combined with jQuery's unsafe element creation that traversed the prototype chain.
When was CVE-2026-23929 disclosed?
CVE-2026-23929 was first published on August 18, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23929 actively exploited?
CVE-2026-23929 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23929?
CVE-2026-23929 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-23929?
A fix for CVE-2026-23929 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23929 are linked in the Vendor Advisories panel on this page.

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