Learning Courses < 5.0 - Authenticated Cross-Site Scripting
Strategic Overview
- Status
- Patched in 5.0
- Affected Plugin
- Learning Courses
- Affected Version
< 5.0- CVSS
- 5.5Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2021-24707
At a glance
CVE-2021-24707 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Learning Courses WordPress plugin, affecting versions < 5.0. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 5.0; sites on affected versions should update now. Disclosed December 2021, reported by dhananjaygarg192002.
Vulnerability Overview
The Learning Courses WordPress plugin before 5.0 does not sanitise and escape the Email PDT identity token settings, which could allow high privilege users to perform cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
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 Learning Courses < 5.0 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 Learning Courses the fix is 5.0: builds < 5.0 are affected, anything from 5.0 onward is not.
Remediation
Update to version 5.0, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Learning Courses: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Learning Courses 5.0 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Learning Courses
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