Detections
Analytics

SCA: security update for contao/core-bundle (GHSA-mfxh-vp55-7gc6)

medium Tenable Cloud Security Plugin ID 474090

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Contao is an Open Source CMS. From version 4.1.0 until 5.3.50 and 5.7.12, ModuleRegistration::compile()
 enters its follow-up registration branch on any POST to a page containing the registration module without
 verifying FORM_SUBMIT or the preceding captcha result. resendActivationMail() can then invoke
 OptInToken::send() without rate limiting, allowing an unauthenticated attacker to cause repeated
 activation emails to be sent to an address with a pending registration and to determine whether that
 pending registration exists. The branch is reachable only when reg_activate is enabled and the target has
 an unconfirmed registration and opt-in token. This issue is fixed in versions 5.3.50 and 5.7.12.
 (CVE-2026-107843)

Solution

Update the contao/core-bundle library and its related packages to version 5.3.50 or later.

See Also

https://github.com/advisories/GHSA-mfxh-vp55-7gc6

Plugin Details

Severity: Medium

ID: 474090

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/10/2026

Updated: 10/10/2026

Risk Information

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-107843

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2026

Vulnerability Publication Date: 10/9/2026

Reference Information

CVE: CVE-2026-107843