CVE-2026-31845

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-11. NVD baseline CVSS 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: Elevated riskExposed: 0

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

A reflected cross-site scripting (XSS) vulnerability exists in Rukovoditel CRM version 3.6.4 and earlier in the Zadarma telephony API endpoint (/api/tel/zadarma.php). The application directly reflects user-supplied input from the 'zd_echo' GET parameter into the HTTP response without proper sanitization, output encoding, or content-type restrictions.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
58(Track)
EG Risk 58/100SSVC: 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
Severity93% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

April 11, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic
https://forum.rukovoditel.net/viewtopic.php?p=22499#p22499

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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 245 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-31845?
CVE-2026-31845 is a critical vulnerability published on April 11, 2026. A reflected cross-site scripting (XSS) vulnerability exists in Rukovoditel CRM version 3.6.4 and earlier in the Zadarma telephony API endpoint (/api/tel/zadarma.php). The application directly reflects user-supplied input from the 'zd_echo' GET parameter into the HTTP response without proper…
When was CVE-2026-31845 disclosed?
CVE-2026-31845 was first published in the National Vulnerability Database on April 11, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31845 actively exploited?
CVE-2026-31845 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 63.9% of all scored CVEs.
What is the CVSS score of CVE-2026-31845?
CVE-2026-31845 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-31845?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31845, 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.

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