XSS in Secondlinethemes Podcast Subscribe Buttons

CVE-2023-5308

The Podcast Subscribe Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'podcast_subscribe' shortcode in versions up to, and including, 1.4.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (36.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-5308?
CVE-2023-5308 is a medium-severity vulnerability in Secondlinethemes Podcast Subscribe Buttons, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2023-10-20.
How severe is CVE-2023-5308?
Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2023-5308 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.