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TI-2021-22399 Aliases CVE-2021-47783GHSA-j425-3jgm-m83r

Phpwcms 1.9.30 - Arbitrary File Upload

Priority MEDIUM 57CWE-434Published · Updated

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 · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

Phpwcms 1.9.30 contains a file upload vulnerability that allows authenticated attackers to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG payloads through the multiple file upload feature to potentially execute cross-site scripting attacks on the platform.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and 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
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
slackeroPhpwcms1.9.30—No fix listedCNA
  • Phpwcms Vendorslackero Affected 1.9.30 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpwcms:phpwcms:1.9.30:*:*:*:*:*:*:*1.9.30Vulnerableslackero
  • cpe:2.3:a:phpwcms:phpwcms:1.9.30:*:*:*:*:*:*:* Versions 1.9.30 Vulnerable ·slackero

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47783
  2. 2026-10-03 Alias added: GHSA-j425-3jgm-m83r

References

Exploit 1

Other 1

  • 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-2025-04938 slackero phpwcms Custom Source Tab cnt21.readform.inc.php is_file deserialization CVSS 4.0MEDIUM 5.1
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences