Strategic Overview
- Status
- Patched in 1.6.0
- Affected Theme
- Bello - Directory & Listing
- Affected Version
< 1.6.0- CVSS
- 6.4Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2021-24319
At a glance
CVE-2021-24319 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Bello - Directory & Listing WordPress theme, affecting versions < 1.6.0. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). The issue is fixed in version 1.6.0; sites on affected versions should update now. Disclosed May 2021, reported by R3N0.
Vulnerability Overview
The Bello - Directory & Listing WordPress theme before 1.6.0 did not properly sanitise its post_excerpt parameter before outputting it back in the shop/my-account/bello-listing-endpoint/ page, leading to a Cross-Site Scripting issue
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in Bello - Directory & Listing < 1.6.0 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Bello - Directory & Listing the fix is 1.6.0: builds < 1.6.0 are affected, anything from 1.6.0 onward is not.
Remediation
Update to version 1.6.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Bello - Directory & Listing: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Bello - Directory & Listing 1.6.0 closes this, and updating the theme is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Bello - Directory & Listing
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