VulnSocial

CVE-2026-41128Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the `actionSavePermissions()` endpoint allows a user with only `viewUsers` permission to remove arbitrary users from all user groups. While `_saveUserGroups()` enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty `groups` value removes all existing group memberships. Version 5.9.15 contains a patch.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 4 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 4 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-04-25)
  • 4 total mentions across 3 days

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-04-18: 1Mentions · 2026-04-22: 1Mentions · 2026-04-25: 2Patch / Workaround · 2026-04-18: 1Technical Details · 2026-04-22: 1Technical Details · 2026-04-25: 104-1804-2204-25
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-181
Disclosure1
2026-04-221
Disclosure1
2026-04-252
Disclosure2
Full discourse4 posts
  • kaminuma@kaminuma_dev
    Disclosure

    A vulnerability I reported to Craft CMS is now public: CVE-2026-41128 Thanks to the maintainers for the fix and disclosure. Advisory: https://github.com/craftcms/cms/security/advisories/GHSA-jq2f-59pj-p3m3 #CVE #AppSec #Security #CraftCMS

    Post summary

    The post announces that CVE-2026-41128 has been publicly disclosed for Craft CMS and expresses gratitude for the fix, without mentioning exploitation or technical specifics.

    00020338
    136 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-41128 Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the `actionSavePermissions()` endpoint allows a user with only `viewUsers` permissio… https://www.cve.org/CVERecord?id=CVE-2026-41128 ----- Traducción: CVE-2026-41128 Cra… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-41128 for Craft CMS, detailing how the actionSavePermissions endpoint can be abused in certain versions, but provides no PoC, exploit, patches, or active exploitation information.

    0000080
    72 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-41128 Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the `actionSavePermissions()` endpoint allows a user with only `viewUsers` permissio… https://www.cve.org/CVERecord?id=CVE-2026-41128

    Post summary

    The excerpt offers a high‑level vulnerability disclosure for Craft CMS, noting the affected endpoint and permissions without detailing a PoC, exploit, or mitigation.

    00000157
    57.3K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-41128 Unauthorized User Group Removal in Craft CMS 5.6.0 Through 5.9.14 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-41128

    Post summary

    The excerpt announces CVE‑2026‑41128, detailing an unauthorized user group removal flaw in Craft CMS versions 5.6.0 to 5.9.14, and links to a vulnerability information page.

    00000123
    4.0K followersView on X

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