CVE-2026-65448Network attack vector

Cross-site scripting via undisclosed input handling

Published Jul 27, 2026 · Updated Jul 27, 2026

Cross-site scripting in Acyba AcyChecker 1.8.1 and earlier allows remote attackers to execute script in a visitor browser. The public CNA and Patchstack records identify the flaw class but do not disclose the affected endpoint, parameter, or encoding failure. Exploitation requires user interaction; Patchstack labels the attacker unauthenticated, although its CVSS assessment encodes low privileges.

CVSS severity6.5
Medium
EPSS probability0.13%
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 Acyba AcyChecker 1.8.1 and earlier allows remote attackers to execute script in a visitor browser. The public CNA and Patchstack records identify the flaw class but do not disclose the affected endpoint, parameter, or encoding failure. Exploitation requires user interaction; Patchstack labels the attacker unauthenticated, although its CVSS assessment encodes low privileges.

The record

CVE
CVE-2026-65448
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
AcyMailing Newsletter Team
Product
AcyChecker
Classifications
CWE-79, CAPEC-588, T1189
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=1.8.1 changes=[{"at":"2.0.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

AcyMailing Newsletter Team · AcyCheckerversion=n/a <=1.8.1 changes=[{"at":"2.0.0","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based 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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