CVE-2025-26868Network attack vector

Unauthenticated script execution via reflected input

Published Feb 25, 2025 · Updated Apr 28, 2026

Reflected XSS in fastflow Fast Flow 1.2.16 and earlier allows remote attackers to execute scripts via crafted web requests. Public sources identify insufficient input sanitization and output escaping, but do not disclose the affected parameter, function, or rendering path. Exploitation requires a victim to follow an attacker-controlled request, after which injected script runs in the victim browser under the affected WordPress site origin.

CVSS severity7.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in fastflow Fast Flow 1.2.16 and earlier allows remote attackers to execute scripts via crafted web requests. Public sources identify insufficient input sanitization and output escaping, but do not disclose the affected parameter, function, or rendering path. Exploitation requires a victim to follow an attacker-controlled request, after which injected script runs in the victim browser under the affected WordPress site origin.

The record

CVE
CVE-2025-26868
Published
Feb 25, 2025
Updated
Apr 28, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

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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