ACYMAILING · CVE-2026-120466 · Other
NO FIX YET
AcyMailing, a mailing list extension for Joomla and WordPress, lets anyone unsubscribe a subscriber from one or all mailing lists knowing only their email address. The same flaw lets an attacker check whether an address belongs to a subscriber of the site.
first public Nov 12, 2026 · 2 sources
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Sites running AcyMailing in the affected version range that send mailing lists to subscribers. The flaw needs no account, only a subscriber's email address, and is reachable from the internet through the subscription endpoint. Sites without AcyMailing, or on a version outside the range, are not affected.
Not affected if not-installed, version-outside-range
Who cares acymailing, joomla, mailing-lists, wordpress
No fix yet, per the sources.
Joomla / WordPress Extension - acymailing.com - Missing authorization on subscription changes in AcyMailing 1.0.0 - 11.1.1 - An unauthenticated attacker who knows a subscriber's email address can unsubscribe that subscriber from one mailing list or from every mailing lists, without proving that the address is theirs. The affected feature also lets an attacker determine whether a given email address belongs to a subscriber of the site.
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/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
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