XSS in Synved WordPress Shortcodes

CVE-2023-0063

The WordPress Shortcodes WordPress plugin through 1.6.36 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • contact@wpscan.com (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-0063?
CVE-2023-0063 is a medium-severity vulnerability in Synved WordPress Shortcodes, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-03-06.
How severe is CVE-2023-0063?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2023-0063 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.