CVE-2026-73524

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.1 from GitHub Security Advisory published 2026-09-01. A secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle brackets in the FROM email header. The sanitization logic removes only the first occurrence of each angle bracket character, leaving additional angle brackets intact, which attackers exploit by delivering a crafted email whose FROM header executes script in the victim's browser when the user opens the message and accesses the Add Local Contacts function.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100

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 (value × EchelonGraph’s weight)
Severity61% × 45%
The EG Score, 6.1 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 1, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Sep 1, 2026
Patch available. Sources: github_commit, github_release, github_pr.
Web page

Cypht < 2.12.2 XSS via FROM Email Header in Contacts Module | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cypht-xss-via-from-email-header-in-contacts-module
GitHub commit

commit 372343783b3d (cypht-org/cypht)

Fix landed in cypht-org/cypht commit 372343783b3d — awaiting tagged release

https://github.com/cypht-org/cypht/commit/372343783b3d21c12f74bb88d0eef36c1579c062
GitHub pull request

fix(module/contacts): escape From header values in add-contact popup

Fix merged in cypht-org/cypht PR #2072 on 2026-08-28 — awaiting tagged release

https://github.com/cypht-org/cypht/pull/2072
GitHub release Patch Available

v2.12.2

Patch available: cypht-org/cypht v2.12.2

https://github.com/cypht-org/cypht/releases/tag/v2.12.2

Vendor Advisories for CVE-2026-73524(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 18× in last 7d / 77× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 113 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 13 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-12 15:40 UTCEG score recompute
  5. 2026-10-11 19:26 UTCEG score recompute
  6. 2026-10-11 16:42 UTCEG score recompute
  7. 2026-10-11 14:01 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-10-10 02:11 UTCEG score recompute
  11. 2026-10-10 02:11 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-10-09 01:50 UTCEG score recompute
  14. 2026-10-09 01:50 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-10-08 00:04 UTCEG score recompute
  17. 2026-10-08 00:04 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-06 14:09 UTCEG score recompute
  21. 2026-10-06 14:09 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-10-05 13:49 UTCEG score recompute
  24. 2026-10-05 13:49 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
Show 75 more
  1. 2026-10-04 13:29 UTCEG score recompute
  2. 2026-10-04 13:29 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  3. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  4. 2026-10-03 13:09 UTCEG score recompute
  5. 2026-10-03 13:09 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  6. 2026-10-02 08:44 UTCEG score recompute
  7. 2026-10-02 08:44 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  8. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-10-01 08:24 UTCEG score recompute
  10. 2026-10-01 08:24 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  11. 2026-09-30 08:04 UTCEG score recompute
  12. 2026-09-30 08:04 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  13. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-09-29 07:43 UTCEG score recompute
  15. 2026-09-29 07:43 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  16. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-09-28 07:22 UTCEG score recompute
  18. 2026-09-28 07:22 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-09-27 07:02 UTCEG score recompute
  21. 2026-09-27 07:02 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-09-26 06:41 UTCEG score recompute
  24. 2026-09-26 06:41 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  25. 2026-09-25 04:40 UTCEG score recompute
  26. 2026-09-25 04:40 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  27. 2026-09-24 04:20 UTCEG score recompute
  28. 2026-09-24 04:20 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  29. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  30. 2026-09-23 04:00 UTCEG score recompute
  31. 2026-09-23 04:00 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  32. 2026-09-22 03:39 UTCEG score recompute
  33. 2026-09-22 03:39 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  34. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  35. 2026-09-21 03:19 UTCEG score recompute
  36. 2026-09-21 03:19 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  37. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  38. 2026-09-20 02:59 UTCEG score recompute
  39. 2026-09-20 02:59 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  40. 2026-09-19 02:38 UTCEG score recompute
  41. 2026-09-19 02:38 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  42. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  43. 2026-09-18 02:18 UTCEG score recompute
  44. 2026-09-18 02:18 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  45. 2026-09-17 01:58 UTCEG score recompute
  46. 2026-09-17 01:58 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  47. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  48. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  49. 2026-09-16 01:38 UTCEG score recompute
  50. 2026-09-16 01:38 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  51. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  52. 2026-09-15 01:18 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  53. 2026-09-14 00:57 UTCEG score recompute
  54. 2026-09-14 00:57 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  55. 2026-09-13 00:37 UTCEG score recompute
  56. 2026-09-13 00:37 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  57. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  58. 2026-09-12 00:16 UTCEG score recompute
  59. 2026-09-12 00:16 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  60. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  61. 2026-09-10 23:55 UTCEG score recompute
  62. 2026-09-10 23:55 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  63. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  64. 2026-09-09 23:35 UTCEG score recompute
  65. 2026-09-09 23:35 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  66. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  67. 2026-09-08 20:50 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  68. 2026-09-08 04:48 UTCEG score recompute
  69. 2026-09-08 04:48 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  70. 2026-09-07 04:28 UTCEG score recompute
  71. 2026-09-07 04:28 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  72. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  73. 2026-09-06 04:05 UTCEG score recompute
  74. 2026-09-06 04:04 UTCGHSA enrichmentGHSA-r7q3-25g3-96cc · GitHub CVSS 6.1
  75. 2026-09-05 03:44 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73524?
CVE-2026-73524 is a medium-severity vulnerability; its CVE record was published on September 1, 2026. Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle brackets in the FROM email header. The sanitization logic removes only the first occurrence of each…
When was CVE-2026-73524 made public?
CVE-2026-73524 was made public on August 15, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 1, 2026. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-73524 actively exploited?
CVE-2026-73524 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73524?
CVE-2026-73524 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-2026-73524?
A fix for CVE-2026-73524 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73524 are linked in the Vendor Advisories panel on this page.

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