6.5

CVE-2023-3707: automattic activitypub

CVSS: 6.5v3.1MediumModified
Published 16-10-2023Last modified 23-04-2025
Open JSON

Vulnerability summary

CVE-2023-3707 is a medium (CVSS 6.5) vulnerability in automattic activitypub. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 46.1% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 1.0.0.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (wordfence)
EPSS score
0.57%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 16-10-2023
    PublishedVulnerability first disclosed.
  2. 23-04-2025
    Last modifiedVulnerability information updated.

Description

The ActivityPub WordPress plugin before 1.0.0 does not ensure that post contents to be displayed are public and belong to the plugin, allowing any authenticated user, such as subscriber to retrieve the content of arbitrary post (such as draft and private) via an IDOR vector. Password protected posts are not affected by this issue.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.10 pp

From 0.47% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.57%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Automattic1 product
Unknown1 product
Wordpress1 product
  • activitypub≤ 0.17.0 (fixed in 1.0.0)

3 vendors · 3 products

References

2 links