CVE-2026-29002

HIGHPre-NVD 7.27.2
EchelonGraph scoreMEDIUM confidence

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

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-04-10. A secondary CVSS source baseline 7.2; 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 weekElevated

Also known asEUVD-2026-21384 (ENISA EUVD) · GHSA-6g6q-gcm9-395j (GitHub Security Advisories)Source: ENISA EUVD

7.2EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.2Exploit: No code on recordExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists CouchCMS versions up to and including 2.4.0 as affected. No release containing a fix is confirmed on record.

CouchCMS contains a privilege escalation vulnerability that allows authenticated Admin-level users to create SuperAdmin accounts by tampering with the f_k_levels_list parameter in user creation requests. Attackers can modify the parameter value from 4 to 10 in the HTTP request body to bypass authorization validation and gain full application control, circumventing restrictions on SuperAdmin account creation and privilege assignment.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
48
EG Risk 48/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity72% × 45%
Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.2): severity, escalated by confirmed exploitation. This CVE's 7.2 is its impact severity (EG Severity), not escalated.

EG Severity
7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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

April 10, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 15, 2026
No fix on record yet.
Web page

CouchCMS Privilege Escalation via f_k_levels_list Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/couchcms-privilege-escalation-via-f-k-levels-list-parameter
Web page

CouchCMS - A simple and Open-Source CMS for web designers

https://www.couchcms.com/
Web page

CVE-2026-29002_CouchCMS-privilege-Escalation.md · GitHub

https://gist.github.com/thepiyushkumarshukla/477e2d2bbbe8cc3ec0d640c50f0cf9e1

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 39× 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 95 of 249 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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 154 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-10-25 14:37 UTCEG score recompute
  7. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-10-24 16:21 UTCEG score recompute
  9. 2026-10-24 16:21 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  10. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  13. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  16. 2026-10-18 03:50 UTCEG score recompute
  17. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  18. 2026-10-17 16:11 UTCEG score recompute
  19. 2026-10-17 16:11 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  20. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  25. 2026-10-12 16:16 UTCEG score recompute
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  1. 2026-10-11 19:58 UTCEG score recompute
  2. 2026-10-11 17:12 UTCEG score recompute
  3. 2026-10-11 14:41 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  5. 2026-10-10 20:53 UTCOSV refresh
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  7. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  8. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  11. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  12. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  13. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  14. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  18. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  19. 2026-09-21 08:19 UTCOSV refresh
  20. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  26. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  28. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  29. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  32. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  33. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  34. 2026-09-02 06:44 UTCOSV refresh
  35. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  36. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  37. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  38. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  39. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  41. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  43. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  44. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  45. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  46. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  47. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  48. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  49. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  50. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  51. 2026-08-16 07:03 UTCEG score recompute
  52. 2026-08-16 07:03 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  53. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  55. 2026-08-14 18:21 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  56. 2026-08-14 05:03 UTCEG score recompute
  57. 2026-08-14 05:03 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  58. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  59. 2026-08-13 09:20 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  60. 2026-08-12 19:15 UTCEG score recompute
  61. 2026-08-12 19:15 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  62. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  63. 2026-08-11 19:24 UTCEG score recompute
  64. 2026-08-11 19:24 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  65. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  66. 2026-08-11 02:57 UTCEG score recompute
  67. 2026-08-11 02:56 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  68. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  69. 2026-08-10 05:52 UTCGHSA enrichmentGHSA-6g6q-gcm9-395j · GitHub severity HIGH · GitHub CVSS 7.2
  70. 2026-08-09 17:10 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-29002?
CVE-2026-29002 is a high-severity vulnerability; its CVE record was published on April 10, 2026. CouchCMS contains a privilege escalation vulnerability that allows authenticated Admin-level users to create SuperAdmin accounts by tampering with the fklevels_list parameter in user creation requests. Attackers can modify the parameter value from 4 to 10 in the HTTP request body to bypass…
When was CVE-2026-29002 made public?
CVE-2026-29002 was made public on April 3, 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 April 10, 2026. EchelonGraph's copy of the record carries a last-modified date of July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-29002 actively exploited?
CVE-2026-29002 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-29002?
CVE-2026-29002 has a CVSS base score of 7.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-29002?
No fix for CVE-2026-29002 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (VulnCheck) lists CouchCMS versions up to and including 2.4.0 as affected. No release containing a fix is confirmed on record.

Dependency Blast Radius

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