CVE-2022-27850

Simple Ajax Chat <= 20220115 - Cross-Site Request Forgery

2022-04-15 10:48

Strategic Overview

Status: Patched in 20220216
Affected Plugin: Simple Ajax Chat – Add a Fast, Secure Chat Box
Affected Version: <= 20220115
CVSS: 5.4Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2022-27850

View all Simple Ajax Chat – Add a Fast, Secure Chat Box vulnerabilities

At a glance

CVE-2022-27850 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Simple Ajax Chat WordPress plugin, affecting versions <= 20220115. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 20220216; sites on affected versions should update now. Disclosed April 2022, reported by R3N0.

Vulnerability Overview

Cross-Site Request Forgery (CSRF) in Simple Ajax Chat (WordPress plugin) <= 20220115 allows an attacker to clear the chat log or delete a chat message.

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-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Simple Ajax Chat <= 20220115 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Simple Ajax Chat the fix is 20220216: builds <= 20220115 are affected, anything from 20220216 onward is not.

Remediation

Update to version 20220216, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Simple Ajax Chat: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple Ajax Chat 20220216 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-27850 https://www.wordfence.com/threat-intel/vulnerabilities/id/06a7e784-49c3-44fd-882b-c76ab8d871e2 https://nvd.nist.gov/vuln/detail/CVE-2022-27850

Related records

Other vulnerabilities in Simple Ajax Chat – Add a Fast, Secure Chat Box

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow

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