CVE-2021-24997

WP Guppy < 1.3 - Information Disclosure

2021-11-22 00:00

Strategic Overview

Status: Patched in 1.3
Affected Plugin: WP Guppy
Affected Version: < 1.3
CVSS: 6.5Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2021-24997

At a glance

CVE-2021-24997 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the WP Guppy WordPress plugin, affecting versions < 1.3. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.3; sites on affected versions should update now. Disclosed November 2021, reported by Keyvan Hardani.

Vulnerability Overview

The WP Guppy WordPress plugin before 1.3 does not have any authorisation in some of the REST API endpoints, allowing any user to call them which could lead to sensitive information disclosure, such as usernames and chats between users, as well as being able to send messages as an arbitrary user.

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, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in WP Guppy < 1.3 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For WP Guppy the fix is 1.3: builds < 1.3 are affected, anything from 1.3 onward is not.

Remediation

Update to version 1.3, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: WP Guppy 1.3 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24997 https://www.wordfence.com/threat-intel/vulnerabilities/id/1983cc82-c527-47d9-84ba-f903dda1b1ca https://nvd.nist.gov/vuln/detail/CVE-2021-24997

Related records

Other vulnerabilities in WP Guppy

6.5CVE-2025-31920: WP Guppy <= 4.3.3 SQL InjectionCVE-2025-31920

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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