Unrestricted upload in slackero phpwcms Extension Check
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass, Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284 and CWE-434.
Summary
The slackero phpwcms versions from 1.9.0 before 1.9.50 and from 1.12.0 before 1.12.4 are affected. In the Extension Check component, processing of the POST_name argument in include/inc_front/content/cnt23.article.inc.php allows unrestricted file upload (CWE-434). A remote attacker without privileges can upload files, with low impact on confidentiality, integrity and availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
A flaw has been found in slackero phpwcms up to 1.9.49/1.12.3. This issue affects some unknown processing of the file include/inc_front/content/cnt23.article.inc.php of the component Extension Check. This manipulation of the argument POST_name causes unrestricted upload. The attack can be initiated remotely. Upgrading to version 1.9.50 and 1.12.4 is capable of addressing this issue. Patch name: 118c978430f5a9668b30535f6e592c7ae8df711f/f4c136b467565b2d16ebe2b8276b9a03547a9a69/8571cb47df8d66804d1eb88ae3d1ab4fb513e1e7. Upgrading the affected component is recommended.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| slackero | phpwcms | 1.9.0; 1.9.1; 1.9.2; 1.9.3; 1.9.4; 1.9.5; 1.9.6; 1.9.7; 1.9.8; 1.9.9; 1.9.10; 1.9.11; 1.9.12; 1.9.13; 1.9.14; 1.9.15; 1.9.16; 1.9.17; 1.9.18; 1.9.19; 1.9.20; 1.9.21; 1.9.22; 1.9.23; 1.9.24; 1.9.25; 1.9.26; 1.9.27; 1.9.28; 1.9.29; 1.9.30; 1.9.31; 1.9.32; 1.9.33; 1.9.34; 1.9.35; 1.9.36; 1.9.37; 1.9.38; 1.9.39; 1.9.40; 1.9.41; 1.9.42; 1.9.43; 1.9.44; 1.9.45; 1.9.46; 1.9.47; 1.9.48; 1.9.49; 1.12.0; 1.12.1; 1.12.2; 1.12.3 | 1.9.50, 1.12.4 | Patch available | CNA |
- phpwcms Vendorslackero Affected 1.9.0; 1.9.1; 1.9.2; 1.9.3; 1.9.4; 1.9.5; 1.9.6; 1.9.7; 1.9.8; 1.9.9; 1.9.10; 1.9.11; 1.9.12; 1.9.13; 1.9.14; 1.9.15; 1.9.16; 1.9.17; 1.9.18; 1.9.19; 1.9.20; 1.9.21; 1.9.22; 1.9.23; 1.9.24; 1.9.25; 1.9.26; 1.9.27; 1.9.28; 1.9.29; 1.9.30; 1.9.31; 1.9.32; 1.9.33; 1.9.34; 1.9.35; 1.9.36; 1.9.37; 1.9.38; 1.9.39; 1.9.40; 1.9.41; 1.9.42; 1.9.43; 1.9.44; 1.9.45; 1.9.46; 1.9.47; 1.9.48; 1.9.49; 1.12.0; 1.12.1; 1.12.2; 1.12.3 Fixed in 1.9.50, 1.12.4 Patch available CNA
Remediation
Upgrade phpwcms to 1.9.50 or 1.12.4, depending on the installed version.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
- Fix · CNA phpwcms (slackero) Fixed in 1.9.50, 1.12.4
Timeline
- 2026-10-13 Threatist record created from CVE-2026-110025
- 2026-10-14 Priority changed: MEDIUM → LOW
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: LOW → HIGH
References
More slackero vulnerabilities
- TI-2021-14759 An issue discovered in phpwcms 1.9.25 allows remote attackers to run arbitrary code via… CVSS 3.1CRITICAL 9.8
- TI-2021-14761 File Upload vulnerability in phpwcms 1.9.25 allows remote attackers to run arbitrary code… CVSS 3.1HIGH 8.8
- TI-2025-04939 slackero phpwcms image_resized.php getimagesize deserialization CVSS 4.0MEDIUM 6.9
- TI-2021-14760 Directory traversal vulnerability in phpcms 1.9.25 allows remote attackers to delete… CVSS 3.1MEDIUM 5.4
- TI-2025-04937 slackero phpwcms Feedimport processing.inc.php deserialization CVSS 4.0MEDIUM 5.3
- TI-2021-22399 Phpwcms 1.9.30 - Arbitrary File Upload CVSS 4.0MEDIUM 5.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences