CVE-2013-2008

WP Super Cache Plugin <= 1.3 - Multiple Cross-Site Scripting

2014-08-01 00:00

Strategic Overview

Status: Patched in 1.3.1
Affected Plugin: WP Super Cache
Affected Version: <= 1.3
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2013-2008

At a glance

CVE-2013-2008 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WP Super Cache WordPress plugin, affecting versions <= 1.3. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.3.1; sites on affected versions should update now. Disclosed August 2014, reported by Kurt Seifried (Red Hat SRT).

Vulnerability Overview

The WordPress Super Cache Plugin 1.3 has XSS via several vulnerable parameters.

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 privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in WP Super Cache <= 1.3 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 WP Super Cache the fix is 1.3.1: builds <= 1.3 are affected, anything from 1.3.1 onward is not.

Remediation

Update to version 1.3.1, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP Super Cache: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Super Cache 1.3.1 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2013-2008 https://www.wordfence.com/threat-intel/vulnerabilities/id/2fcbd6c5-dd03-439c-b6b8-54b0c24a1c27 https://nvd.nist.gov/vuln/detail/CVE-2013-2008

Related records

Same weakness class

Other vulnerabilities in WP Super Cache

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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