CVE-2021-25065Network attack vector

Authenticated script execution via cff-top reflection

Published Jan 17, 2022 · Updated Aug 3, 2024

Cross-site scripting in Smash Balloon Social Post Feed before 4.1.1 allows remote authenticated users to execute script via the cff-top admin page. The custom-facebook-feed cff-top admin page reflects attacker-controlled input into generated HTML without adequate output encoding. An authenticated WordPress account must induce an administrator to load the crafted request; script executes in that user's browser context and can read or alter accessible page data.

CVSS severity5.4
Medium
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Smash Balloon Social Post Feed before 4.1.1 allows remote authenticated users to execute script via the cff-top admin page. The custom-facebook-feed cff-top admin page reflects attacker-controlled input into generated HTML without adequate output encoding. An authenticated WordPress account must induce an administrator to load the crafted request; script executes in that user's browser context and can read or alter accessible page data.

The record

CVE
CVE-2021-25065
Published
Jan 17, 2022
Updated
Aug 3, 2024
Vendor
Smash Balloon
Product
Smash Balloon Social Post Feed
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.1.1 <4.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Smash Balloon · Smash Balloon Social Post Feedversion=4.1.1 <4.1.1

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-site Scripting (XSS)
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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