CVE-2026-73572

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 week
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: None knownExposed services: Not assessed

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

In Zimbra Collaboration (ZCS) before 10.1.17, a stored cross-site scripting (XSS) vulnerability exists in the Zimbra Classic Web Client due to insufficient sanitization of specific attachment content during inline preview. An attacker can send a crafted email containing a malicious attachment that, when previewed by a user, executes arbitrary JavaScript within the victim's browser session. Successful exploitation may allow an attacker to perform unauthorized actions on behalf of the victim user, potentially leading to data exfiltration or unauthorized access to sensitive information.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100CISA 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%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
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
16th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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 none (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 28, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

Zimbra Responsible Disclosure Policy - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
generic

Zimbra Security Advisories - Zimbra :: Tech Center

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

Vendor Advisories for CVE-2026-73572(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 11× in last 7d / 66× 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 132 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 21:47 UTCEG score recompute
  10. 2026-09-30 21:47 UTCGHSA enrichment
  11. 2026-09-29 15:24 UTCEPSS rescore
  12. 2026-09-28 13:52 UTCEPSS rescore
  13. 2026-09-28 10:16 UTCEG score recompute
  14. 2026-09-28 10:16 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. 2026-09-25 03:33 UTCEG score recompute
  20. 2026-09-25 03:33 UTCGHSA enrichment
  21. 2026-09-23 21:31 UTCEG score recompute
  22. 2026-09-23 21:31 UTCGHSA enrichment
  23. 2026-09-23 17:54 UTCEPSS rescore
  24. 2026-09-22 21:01 UTCEG score recompute
  25. 2026-09-22 21:00 UTCGHSA enrichment
Show 75 more
  1. 2026-09-21 21:09 UTCEPSS rescore
  2. 2026-09-21 19:54 UTCEG score recompute
  3. 2026-09-21 19:54 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 15:56 UTCEG score recompute
  6. 2026-09-20 15:56 UTCGHSA enrichment
  7. 2026-09-19 13:20 UTCEG score recompute
  8. 2026-09-19 13:20 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 12:50 UTCEG score recompute
  11. 2026-09-18 12:50 UTCGHSA enrichment
  12. 2026-09-17 12:03 UTCEG score recompute
  13. 2026-09-17 12:02 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 10:28 UTCEG score recompute
  16. 2026-09-16 10:28 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 09:52 UTCEG score recompute
  19. 2026-09-15 09:52 UTCGHSA enrichment
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-14 09:21 UTCEG score recompute
  22. 2026-09-14 09:21 UTCGHSA enrichment
  23. 2026-09-13 08:51 UTCEG score recompute
  24. 2026-09-13 08:51 UTCGHSA enrichment
  25. 2026-09-12 08:21 UTCEG score recompute
  26. 2026-09-12 08:21 UTCGHSA enrichment
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 07:50 UTCEG score recompute
  29. 2026-09-11 07:50 UTCGHSA enrichment
  30. 2026-09-10 09:35 UTCEPSS rescore
  31. 2026-09-10 07:20 UTCGHSA enrichment
  32. 2026-09-09 06:49 UTCEG score recompute
  33. 2026-09-09 06:49 UTCGHSA enrichment
  34. 2026-09-08 22:01 UTCEPSS rescore
  35. 2026-09-08 06:19 UTCEG score recompute
  36. 2026-09-08 06:19 UTCGHSA enrichment
  37. 2026-09-07 05:44 UTCEG score recompute
  38. 2026-09-07 05:44 UTCGHSA enrichment
  39. 2026-09-06 13:48 UTCEPSS rescore
  40. 2026-09-06 02:03 UTCEG score recompute
  41. 2026-09-06 02:03 UTCGHSA enrichment
  42. 2026-09-05 01:32 UTCEG score recompute
  43. 2026-09-05 01:32 UTCGHSA enrichment
  44. 2026-09-04 05:07 UTCEPSS rescore
  45. 2026-09-04 01:01 UTCGHSA enrichment
  46. 2026-09-02 23:11 UTCEG score recompute
  47. 2026-09-02 23:11 UTCGHSA enrichment
  48. 2026-09-02 14:12 UTCEPSS rescore
  49. 2026-09-01 22:05 UTCEG score recompute
  50. 2026-09-01 22:05 UTCGHSA enrichment
  51. 2026-09-01 13:54 UTCEPSS rescore
  52. 2026-08-31 21:34 UTCEG score recompute
  53. 2026-08-31 21:34 UTCGHSA enrichment
  54. 2026-08-30 19:18 UTCEPSS rescore
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-30 15:40 UTCEG score recompute
  57. 2026-08-30 15:40 UTCGHSA enrichment
  58. 2026-08-30 01:22 UTCEPSS rescore
  59. 2026-08-29 15:09 UTCEG score recompute
  60. 2026-08-29 15:09 UTCGHSA enrichment
  61. 2026-08-28 21:42 UTCEPSS rescore
  62. 2026-08-28 14:07 UTCGHSA enrichment
  63. 2026-08-27 19:32 UTCEG score recompute
  64. 2026-08-27 19:32 UTCGHSA enrichment
  65. 2026-08-27 14:25 UTCEPSS rescore
  66. 2026-08-26 18:43 UTCEG score recompute
  67. 2026-08-26 18:43 UTCGHSA enrichment
  68. 2026-08-26 14:47 UTCEPSS rescore
  69. 2026-08-25 16:12 UTCEG score recompute
  70. 2026-08-25 16:12 UTCGHSA enrichment
  71. 2026-08-25 13:49 UTCEPSS rescore
  72. 2026-08-24 15:42 UTCEG score recompute
  73. 2026-08-24 15:42 UTCGHSA enrichment
  74. 2026-08-23 15:09 UTCEG score recompute
  75. 2026-08-23 15:09 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-73572?
CVE-2026-73572 is a medium vulnerability published on August 13, 2026. In Zimbra Collaboration (ZCS) before 10.1.17, a stored cross-site scripting (XSS) vulnerability exists in the Zimbra Classic Web Client due to insufficient sanitization of specific attachment content during inline preview. An attacker can send a crafted email containing a malicious attachment that,…
When was CVE-2026-73572 disclosed?
CVE-2026-73572 was first published on August 13, 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-2026-73572 actively exploited?
CVE-2026-73572 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73572?
CVE-2026-73572 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-2026-73572?
No fix for CVE-2026-73572 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-2026-73572 are linked in the Vendor Advisories panel on this page.

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