CVE-2026-73671

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2026-08-13. A secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.1Exploit: Elevated riskExposed services: Not assessed

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

Saurus CMS Community Edition contains an unauthenticated open redirect vulnerability in the logout handling code in classes/port.inc.php, where the url parameter supplied via GET or POST is passed directly to the Location header without domain allowlist, scheme validation, or relative path enforcement. Attackers can craft a malicious logout URL containing an arbitrary external domain or javascript: URI scheme to redirect authenticated users to attacker-controlled phishing pages after session destruction, enabling credential theft and OAuth redirect abuse.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA 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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 13, 2026

Last Modified

August 31, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Saurus CMS Unauthenticated Open Redirect via logout url parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/saurus-cms-unauthenticated-open-redirect-via-logout-url-parameter
generic

GitHub - sauruscms/Saurus-CMS-Community-Edition: Saurus CMS Community Edition · GitHub

https://github.com/sauruscms/Saurus-CMS-Community-Edition
generic🟡 PoC Available

VULN-POC/Saurus_OpenRedirect.md at main · DevVaibhav07/VULN-POC · GitHub

https://github.com/DevVaibhav07/VULN-POC/blob/main/Saurus_OpenRedirect.md

Vendor Advisories for CVE-2026-73671(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 12× in last 7d / 63× 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 130 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73671?
CVE-2026-73671 is a medium vulnerability published on August 13, 2026. Saurus CMS Community Edition contains an unauthenticated open redirect vulnerability in the logout handling code in classes/port.inc.php, where the url parameter supplied via GET or POST is passed directly to the Location header without domain allowlist, scheme validation, or relative path…
When was CVE-2026-73671 disclosed?
CVE-2026-73671 was first published on August 13, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73671 actively exploited?
CVE-2026-73671 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73671?
CVE-2026-73671 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73671?
No fix for CVE-2026-73671 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-73671 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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