Code injection in TallCMS PluginManager ThemeManager.php
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
TallCMS up to 4.8.0 has a code injection flaw in the ThemeManager.php file of its PluginManager component. Improper control of code generation (CWE-94) lets a remote attacker with low privileges inject code through a manipulation of that component. The exploit has been publicly disclosed and may be used.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
A vulnerability was determined in TallCMS up to 4.8.0. This affects an unknown function of the file packages/tallcms/cms/src/Filament/Pages/ThemeManager.php of the component PluginManager. Executing a manipulation can lead to code injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called fdc18f4c6a36134f8986ca1d7e4e97092e3deb93. It is best practice to apply a patch to resolve this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| — | TallCMS | 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8.0 | — | No fix listed | CNA |
- TallCMS Vendor— Affected 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8.0 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tallcms:tallcms:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:tallcms:tallcms:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
No fixed version is listed for TallCMS. Patch fdc18f4c6a36134f8986ca1d7e4e97092e3deb93 is the listed fix, and applying it is recommended.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-05 Threatist record created from CVE-2026-105329
- 2026-10-05 Alias added: GHSA-pr2m-rphr-6wqj
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-07 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-105329 · CVE Program
- CVE-2026-105329 · NVD
- FIRST EPSS
- GHSA-pr2m-rphr-6wqj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences