Skip to content
Noroxi
NVD / CVE Program· CNA WPScan

CVE-2025-4133: Blog2Social: Social Media Auto Post & Scheduler < 8.4.0 - Contributor+ Stored XSS

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Unknown Blog2Social: Social Media Auto Post & Scheduler 8.4.0.

Low priority for now. Upgrade to Unknown Blog2Social: Social Media Auto Post & Scheduler 8.4.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin before 8.4.0 does not escape the title of posts when outputting them in a dashboard, which could allow users with the contributor role to perform Cross-Site Scripting attacks.

MediumCVSS 5.4 · v3.1—No exploit Fix available
Published
May 22, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Is Blog2Social: Social Media Auto Post & Scheduler on your site?

WP Lens reads your site's plugin, theme and WordPress versions from the outside and matches them to known vulnerabilities. Works without an account.

Follow CVE-2025-4133

Is Blog2Social: Social Media Auto Post & Scheduler on your site?

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for adenion records
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
adenionblog2social

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • adenion blog2socialbefore 8.4.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WPScan). Independent of NVD's CPE analysis and usually ahead of it.

  • Unknown Blog2Social: Social Media Auto Post & Scheduler

    • before 8.4.0affected · semver

Same product

adenion: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-13572The Adenion Blog2Social plugin through 5.5.0 for WordPress allows SQL Injection.
    40Plan
  • CVE-2024-3549Blog2Social: Social Media Auto Post & Scheduler <= 7.4.1 - Authenticated (Subscriber+) SQL Injection
    39Monitor
  • CVE-2022-3246Blog2Social < 6.9.10 - Subscriber+ SQLi
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2024-3678Apr 26, 2024 · Blog2Social: Social Media Auto Post & Scheduler <= 7.4.2 - Information Exposure
    21Monitor
  • ← EarlierCVE-2024-7302Aug 1, 2024 · Blog2Social: Social Media Auto Post & Scheduler <= 7.5.4 - Authenticated (Author+) Stored Cross-Site Scripting via File Upload
    21Monitor
  • Later →CVE-2026-56044Jun 26, 2026 · WordPress Blog2Social plugin <= 8.9.2 - Cross Site Scripting (XSS) vulnerability
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Unknown Blog2Social: Social Media Auto Post & Scheduler8.4.0Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-56044400 days apartWordPress Blog2Social plugin <= 8.9.2 - Cross Site Scripting (XSS) vulnerability
    28Monitor
  • CVE-2024-7302294 days apartBlog2Social: Social Media Auto Post & Scheduler <= 7.5.4 - Authenticated (Author+) Stored Cross-Site Scripting via File Upload
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

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

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

All records