CVE-2022-4836: Breadcrumb < 1.5.33 - Contributor+ Stored XSS via Shortcode

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-02-06 · updated 2026-06-17

Description

The Breadcrumb WordPress plugin before 1.5.33 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Affected products

Breadcrumb: before 1.5.33 — fixed in 1.5.33

How to fix

Upgrade to a fixed version: Breadcrumb 1.5.33. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/e9a228dc-d32e-4918-898d-4d7af4662a14
https://wpscan.com/vulnerability/e9a228dc-d32e-4918-898d-4d7af4662a14

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