CVE-2025-47916

Invision Community 5.0.0 before 5.0.7 allows remote code execution via crafted template strings to themeeditor.php. The issue lies within the themeeditor controller (file: /applications/core/modules/front/system/themeeditor.php), where a protected method named customCss can be invoked by unauthenticated users. This method passes the value of the content parameter to the Theme::makeProcessFunction() method; hence it is evaluated by the template engine. Accordingly, this can be exploited by unauthenticated attackers to inject and execute arbitrary PHP code by providing crafted template strings.

Affected

invisioncommunity · Invision Power Board

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 MITRE

10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS

84.19% chance of exploitation in the next 30 days, 100th percentile

Nuclei

critical · CWE-1336

Published

2025-05-16

Updated

2025-05-17

Proof-of-concept exploits (1)

• https://karmainsecurity.com/KIS-2025-02

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-47916.yaml

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/invision_customcss_rc…

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/52294

Security advisories

• http://seclists.org/fulldisclosure/2025/May/4
• https://invisioncommunity.com/release-notes-v5/507-r41

References

• CVE Record
• NVD entry