CVE-2023-5057

ActivityPub for WordPress < 1.0.0 - Contributor+ Stored XSS

MEDIUM
5.4
CVSS Score
Published: October 16, 2023 at 07:39 PM UTC
Updated: June 17, 2026 at 06:47 AM UTC
1 product affected across 1 vendorActivitypub

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.5%

Description

The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Activitypub· Automatticwordpress-plugin
95%
v < 1.0.0
Affected range stops below 1.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical DescriptionThird Party Advisory
https://wpscan.com/vulnerability/58a63507-f0fd-46f1-a80c-6b1c41dddcf5

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE

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