Erident Custom Login and Dashboard <= 3.5.8 - Authenticated Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 3.5.9
- Affected Plugin
- Erident Custom Login and Dashboard
- Affected Version
<= 3.5.8- CVSS
- 4.8Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2021-24658
At a glance
CVE-2021-24658 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Erident Custom Login and Dashboard WordPress plugin, affecting versions <= 3.5.8. It carries a CVSS score of 4.8 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 3.5.9; sites on affected versions should update now. Disclosed April 2021, reported by James Calver.
Vulnerability Overview
The Erident Custom Login and Dashboard WordPress plugin before 3.5.9 did not properly sanitise its settings, allowing high privilege users to use XSS payloads in them (even when the unfileted_html is disabled)
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in Erident Custom Login and Dashboard <= 3.5.8 takes any authenticated account. 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 Erident Custom Login and Dashboard the fix is 3.5.9: builds <= 3.5.8 are affected, anything from 3.5.9 onward is not.
Remediation
Update to version 3.5.9, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Erident Custom Login and Dashboard: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Erident Custom Login and Dashboard 3.5.9 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Erident Custom Login and Dashboard
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