CVE-2025-47916: invisioncommunity Code Injection

Description

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.

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CVSS v3.1 Score

10.0

CRITICAL

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

Weakness Type (CWE)

CWE-1336 CWE-1336

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
invisioncommunity	invisioncommunity	5.0.0 — 5.0.7

References

Exploits

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

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2025-47916? +

CVE-2025-47916 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-47916? +

CVE-2025-47916 affects products from invisioncommunity, specifically: invisioncommunity. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-47916? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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