File Upload vulnerability in phpwcms 1.9.25 allows remote attackers to run arbitrary code…
Priority HIGH 73CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.
Summary
File Upload vulnerability in phpwcms 1.9.25 allows remote attackers to run arbitrary code via crafted file upload to include/inc_lib/general.inc.php.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01058 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36426
- 2026-10-03 Alias added: GHSA-f43h-hw82-75jg
References
More slackero Phpwcms 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-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
- TI-2025-04938 slackero phpwcms Custom Source Tab cnt21.readform.inc.php is_file deserialization CVSS 4.0MEDIUM 5.1
Sources
- CVE-2021-36426 · CVE Program
- CVE-2021-36426 · NVD
- FIRST EPSS
- GHSA-f43h-hw82-75jg · GitHub Advisory Database · CC BY 4.0
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