CVE-2024-8505

WordPress Infinite Scroll - Ajax Load More <= 7.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via button_label Parameter

2024-10-01 21:01

Strategic Overview

Status: Patched in 7.1.3
Affected Plugin: Ajax Load More – Infinite Scroll, Load More, & Lazy Load
Affected Version: <= 7.1.2
CVSS: 6.4Medium
Weakness type: CWE-87 · Improper Neutralization of Alternate XSS Syntax
CVE: CVE-2024-8505

View all Ajax Load More – Infinite Scroll, Load More, & Lazy Load vulnerabilities

At a glance

CVE-2024-8505 is a medium-severity Improper Neutralization of Alternate XSS Syntax vulnerability in the Ajax Load More WordPress plugin, affecting versions <= 7.1.2. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 7.1.3; sites on affected versions should update now. Disclosed October 2024, reported by Robert DeVore.

Vulnerability Overview

The WordPress Infinite Scroll – Ajax Load More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘button_label’ parameter in all versions up to, and including, 7.1.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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-87: Improper Neutralization of Alternate XSS Syntax

The product does not neutralize or incorrectly neutralizes user-controlled input for alternate script syntax.

Remediation

Update to version 7.1.3, or a newer patched version

How does WordSec protect against this?

An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Ajax Load More 7.1.3 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-8505 https://www.wordfence.com/threat-intel/vulnerabilities/id/ca29158a-ca60-46c7-93a5-bcf76e7666e4 https://nvd.nist.gov/vuln/detail/CVE-2024-8505

Related records

Other vulnerabilities in Ajax Load More – Infinite Scroll, Load More, & Lazy Load

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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