CVE-2021-47783

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.

CVSS v4.0

5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 21th percentile

Published

2026-01-15

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50363

References

• CVE Record
• NVD entry

Related

• CVE-2021-47782
• CVE-2021-47784
• CVE-2021-47781
• CVE-2021-47785
• CVE-2021-47780
• CVE-2021-47786