CVE-2026-13374

MEDIUMNVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

Score 4.8 from GitHub Security Advisory published 2026-07-03. NVD baseline CVSS 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

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

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13937.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

July 3, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in ConnectWise Technology Integration Configuration | WatchGuard Technologies

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00016

Vendor Advisories for CVE-2026-13374(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 7× in last 7d / 52× 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 146 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13374?
CVE-2026-13374 is a medium vulnerability published on July 3, 2026. Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13937.
When was CVE-2026-13374 disclosed?
CVE-2026-13374 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13374 actively exploited?
CVE-2026-13374 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 80.9% of all scored CVEs.
What is the CVSS score of CVE-2026-13374?
CVE-2026-13374 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-13374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13374, 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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