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%CVSS: 6.1Exploit: Elevated riskExposed: 0

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

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
6.1(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

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 17× in last 7d / 74× 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 102 total refreshes for this CVE.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 05:01 UTCEG score recompute
  3. 2026-09-20 05:01 UTCGHSA enrichment
  4. 2026-09-19 03:18 UTCEG score recompute
  5. 2026-09-19 03:18 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 01:39 UTCEG score recompute
  8. 2026-09-18 01:39 UTCGHSA enrichment
  9. 2026-09-16 23:59 UTCEG score recompute
  10. 2026-09-16 23:59 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 15:21 UTCEG score recompute
  14. 2026-09-15 15:21 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 13:17 UTCEG score recompute
  17. 2026-09-14 13:17 UTCGHSA enrichment
  18. 2026-09-13 11:37 UTCEG score recompute
  19. 2026-09-13 11:37 UTCGHSA enrichment
  20. 2026-09-12 15:02 UTCEPSS rescore
  21. 2026-09-12 09:57 UTCEG score recompute
  22. 2026-09-12 09:57 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 08:17 UTCEG score recompute
  25. 2026-09-11 08:17 UTCGHSA enrichment
Show 75 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-10 06:37 UTCGHSA enrichment
  3. 2026-09-09 04:57 UTCEG score recompute
  4. 2026-09-09 04:57 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-07 07:13 UTCEG score recompute
  7. 2026-09-07 07:12 UTCGHSA enrichment
  8. 2026-09-06 13:48 UTCEPSS rescore
  9. 2026-09-06 05:04 UTCEG score recompute
  10. 2026-09-06 05:04 UTCGHSA enrichment
  11. 2026-09-05 03:25 UTCEG score recompute
  12. 2026-09-05 03:25 UTCGHSA enrichment
  13. 2026-09-04 05:07 UTCEPSS rescore
  14. 2026-09-04 01:45 UTCGHSA enrichment
  15. 2026-09-03 00:02 UTCEG score recompute
  16. 2026-09-03 00:02 UTCGHSA enrichment
  17. 2026-09-02 14:12 UTCEPSS rescore
  18. 2026-09-01 22:22 UTCEG score recompute
  19. 2026-09-01 22:22 UTCGHSA enrichment
  20. 2026-09-01 13:54 UTCEPSS rescore
  21. 2026-09-01 04:40 UTCEPSS rescore
  22. 2026-09-01 04:40 UTCEPSS rescore
  23. 2026-08-31 20:42 UTCGHSA enrichment
  24. 2026-08-31 11:39 UTCEG score recompute
  25. 2026-08-31 11:39 UTCGHSA enrichment
  26. 2026-08-30 19:18 UTCEPSS rescore
  27. 2026-08-30 19:17 UTCEPSS rescore
  28. 2026-08-30 09:20 UTCEG score recompute
  29. 2026-08-30 09:19 UTCGHSA enrichment
  30. 2026-08-30 01:22 UTCEPSS rescore
  31. 2026-08-29 07:36 UTCEG score recompute
  32. 2026-08-29 07:36 UTCGHSA enrichment
  33. 2026-08-28 21:42 UTCEPSS rescore
  34. 2026-08-27 14:25 UTCEPSS rescore
  35. 2026-08-27 13:38 UTCEG score recompute
  36. 2026-08-27 13:38 UTCGHSA enrichment
  37. 2026-08-26 14:47 UTCEPSS rescore
  38. 2026-08-26 11:53 UTCEG score recompute
  39. 2026-08-26 11:53 UTCGHSA enrichment
  40. 2026-08-25 13:49 UTCEPSS rescore
  41. 2026-08-25 10:14 UTCEG score recompute
  42. 2026-08-25 10:14 UTCGHSA enrichment
  43. 2026-08-24 08:35 UTCGHSA enrichment
  44. 2026-08-23 06:50 UTCEG score recompute
  45. 2026-08-23 06:50 UTCGHSA enrichment
  46. 2026-08-23 00:19 UTCEPSS rescore
  47. 2026-08-22 05:11 UTCEG score recompute
  48. 2026-08-22 05:11 UTCGHSA enrichment
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-21 03:31 UTCEG score recompute
  51. 2026-08-21 03:31 UTCGHSA enrichment
  52. 2026-08-20 22:56 UTCEPSS rescore
  53. 2026-08-20 01:52 UTCEG score recompute
  54. 2026-08-20 01:52 UTCGHSA enrichment
  55. 2026-08-19 17:04 UTCEPSS rescore
  56. 2026-08-19 00:12 UTCEG score recompute
  57. 2026-08-19 00:12 UTCGHSA enrichment
  58. 2026-08-18 13:49 UTCEPSS rescore
  59. 2026-08-18 13:49 UTCEPSS rescore
  60. 2026-08-17 22:33 UTCEG score recompute
  61. 2026-08-17 22:33 UTCGHSA enrichment
  62. 2026-08-17 13:47 UTCEPSS rescore
  63. 2026-08-16 20:53 UTCEG score recompute
  64. 2026-08-16 20:53 UTCGHSA enrichment
  65. 2026-08-16 14:56 UTCEPSS rescore
  66. 2026-08-16 14:56 UTCEPSS rescore
  67. 2026-08-16 02:15 UTCEPSS rescore
  68. 2026-08-15 19:14 UTCEG score recompute
  69. 2026-08-15 19:14 UTCGHSA enrichment
  70. 2026-08-15 01:31 UTCEPSS rescore
  71. 2026-08-14 17:34 UTCEG score recompute
  72. 2026-08-14 17:34 UTCGHSA enrichment
  73. 2026-08-14 17:07 UTCEG score recompute
  74. 2026-08-14 17:07 UTCGHSA enrichment
  75. 2026-08-13 16:25 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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 86.8% of all scored CVEs.
What is the CVSS score of CVE-2026-73671?
CVE-2026-73671 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-73671?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73671, 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-2026-73671

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