CVE-2021-25047

10Web Social Photo Feed <= 1.4.28 - Reflected Cross-Site Scripting

2021-12-07 00:00

Strategic Overview

Status: Patched in 1.4.29
Affected Plugin: 10WebSocial
Affected Version: <= 1.4.28
CVSS: 6.1Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-25047

At a glance

CVE-2021-25047 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the 10WebSocial WordPress plugin, affecting versions <= 1.4.28. 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 1.4.29; sites on affected versions should update now. Disclosed December 2021, reported by Krzysztof Zając.

Vulnerability Overview

The 10Web Social Photo Feed WordPress plugin before 1.4.29 was affected by a reflected Cross-Site Scripting (XSS) vulnerability in the wdi_apply_changes admin page, allowing an attacker to perform such attack against any logged in users

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 10WebSocial <= 1.4.28 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 10WebSocial the fix is 1.4.29: builds <= 1.4.28 are affected, anything from 1.4.29 onward is not.

Remediation

Update to version 1.4.29, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to 10WebSocial: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: 10WebSocial 1.4.29 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-25047 https://www.wordfence.com/threat-intel/vulnerabilities/id/c5aa0006-435d-4874-8d71-659d5d72e702 https://nvd.nist.gov/vuln/detail/CVE-2021-25047

Related records

Same weakness class

6.1CVE-2018-10300: WD Instagram Feed <= 1.3.0 Cross-site scriptingCVE-2018-10300

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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