CVE-2025-8976Public exploitNetwork attack vector

Authenticated script execution via unescaped menu attributes

Published Aug 14, 2025 · Updated Aug 14, 2025

Cross-site scripting in givanz Vvveb 1.0.5 and earlier allows remote authenticated users to run script in an administrator's browser. The administrative menu template inserts custom-post class and key values into HTML attributes without applying htmlspecialchars. Exploitation requires post-management access and a victim to load the resulting menu, allowing alteration of content in that browser context.

CVSS severity5.4
Medium
EPSS probability0.29%
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 givanz Vvveb 1.0.5 and earlier allows remote authenticated users to run script in an administrator's browser. The administrative menu template inserts custom-post class and key values into HTML attributes without applying htmlspecialchars. Exploitation requires post-management access and a victim to load the resulting menu, allowing alteration of content in that browser context.

The record

CVE
CVE-2025-8976
Published
Aug 14, 2025
Updated
Aug 14, 2025
Vendor
givanz
Product
Vvveb
Classifications
CWE-94, CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2025Record 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=1.0.0
  2. Affected versionversion=1.0.1
  3. Affected versionversion=1.0.2
  4. Affected versionversion=1.0.3
  5. Affected versionversion=1.0.4
  6. Affected versionversion=1.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

givanz · Vvvebversion=1.0.0; version=1.0.1; version=1.0.2; version=1.0.3; version=1.0.4; version=1.0.5

Published CVSS scores

5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

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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