Stored XSS in Moderator Toolbox removal reasons configuration
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
Moderator Toolbox (reddit-moderator-toolbox) before 4.0.14 has a stored cross-site scripting flaw in its removalreasons module. The module inserts subreddit toolbox wiki fields into popup HTML without encoding them (CWE-79). An attacker who can edit the toolbox wiki page can plant JavaScript in fields such as pmsubject, header, or reason titles, which then runs with moderators' Reddit sessions.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| toolbox-team | reddit-moderator-toolbox | before 4.0.14 | 4.0.14 | Patch available | CNA |
- reddit-moderator-toolbox Vendortoolbox-team Affected before 4.0.14 Fixed in 4.0.14 Patch available CNA
Remediation
Update reddit-moderator-toolbox to version 4.0.14 or later, which fixes the flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA reddit-moderator-toolbox (toolbox-team) Fixed in 4.0.14
Timeline
- 2026-10-09 Threatist record created from CVE-2016-20098
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences