CVE-2026-128047
OpenMage magento-lts before 20.18.2 Account Takeover via Predictable Confirmation Key
OpenMage magento-lts before 20.18.2 and 21.0.0-beta pre-releases before 21.0.0-beta3 generate customer email-confirmation keys with md5(uniqid()) and customer and administrator password-reset tokens with the non-cryptographic uniqHash(). Unauthenticated attackers can brute-force the roughly 20-bit confirmation key via the unrate-limited confirmAction endpoint to log in as pending customers, or predict administrator reset tokens after recovering generator state.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| magento-lts OpenMage |
≥ 0; < 20.18.2 (affected, semver) 20.18.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| magento-lts OpenMage |
≥ 21.0.0-beta1; < 21.0.0-beta3 (affected, semver) 21.0.0-beta3 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 9.2 critical |
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA: VulnCheck |
| 4.0 / 9.2 critical |
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/OpenMage/magento-lts/security/advisories/GHSA-7j66-6mw7-rgfxCNA: VulnCheck · vendor-advisory
- https://github.com/OpenMage/magento-lts/commit/4a8d91c692524de4a07e70af5367b6cb67a9516dCNA: VulnCheck · patch
- https://github.com/OpenMage/magento-lts/commit/9f5a1c3cf63f5cf6ac9f90b041a97a474cea04c2CNA: VulnCheck · patch
- https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-account-takeover-via-predictable-confirmation-keyCNA: VulnCheck · third-party-advisory
- https://github.com/OpenMage/magento-lts/commit/4a8d91c692524de4a07e70af5367b6cb67a9516d[email protected]
- https://github.com/OpenMage/magento-lts/commit/9f5a1c3cf63f5cf6ac9f90b041a97a474cea04c2[email protected]
- https://github.com/OpenMage/magento-lts/security/advisories/GHSA-7j66-6mw7-rgfx[email protected]
- https://www.vulncheck.com/advisories/openmage-magento-lts-before-20.18.2-account-takeover-via-predictable-confirmation-key[email protected]
For agents and automation
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