CVE-2016-20098: Moderator Toolbox before 4.0.14 Stored XSS via Removal Reasons Configuration

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-09 · updated 2026-10-09
Weakness: CWE-79

Description

Moderator Toolbox (reddit-moderator-toolbox) before 4.0.14 contains a stored cross-site scripting vulnerability in the removalreasons module, which inserts subreddit toolbox wiki fields into popup HTML without encoding. Attackers who can edit the toolbox wiki page can plant JavaScript in fields like pmsubject, header, or reason titles to act with moderators' Reddit sessions.

Affected products

toolbox-team reddit-moderator-toolbox: before 4.0.14 — fixed in 4.0.14

How to fix

Upgrade to a fixed version: toolbox-team reddit-moderator-toolbox 4.0.14. Check the vendor advisory for mitigations.

References

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