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CVE-2021-47783

MEDIUMCVSS 5.3/10EPSS 0.28%

Last modified

CVE-2021-47783 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
5.4/10

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

CVSS 4.0
5.3/10

CVSS: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

EPSS Probability
0.28%

19.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpwcmsPhpwcms1.9.30

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2021-47783?
CVE-2021-47783 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2021-47783?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-47783?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST