CVE-2025-8975VulnerabilityPublished 14 Aug 2025

CVE-2025-8975: givanz Vvveb · Cross Site Scripting

Affects givanz VvvebSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS: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

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
givanz Vvveb	Affected =1.0.0 =1.0.1 =1.0.2 =1.0.3 =1.0.4 =1.0.5	Fixed in–

AI-suggested

European organizations should immediately upgrade affected instances of givanz Vvveb to version 1.0.6 or later to apply the official patch addressing CVE-2025-8975. Beyond patching, organizations should implement strict access controls to administrative interfaces, restricting access via VPN or IP whitelisting to trusted personnel only. Employing web application firewalls (WAFs) with rules to detect and block XSS payloads targeting the 'slug' parameter can provide additional protection. Regular security audits and input validation reviews should be conducted to identify similar injection points. Monitoring administrative access logs for unusual activity or repeated failed attempts can help detect exploitation attempts early. Finally, educating administrators about the risks of clicking on untrusted links and ensuring secure session management practices will reduce the likelihood of successful exploitation.

Description

A vulnerability was identified in givanz Vvveb up to 1.0.5. This affects an unknown part of the file admin/template/content/edit.tpl. The manipulation of the argument slug leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.6 is able to address this issue. The patch is named 84c11d69df8452dc378feecd17e2a62ac10dac66. It is recommended to upgrade the affected component.

Impact

For European organizations using givanz Vvveb, especially those deploying it in administrative or content management roles, this vulnerability poses a significant risk. Exploitation could allow attackers to execute arbitrary scripts in the context of an administrator's session, potentially leading to unauthorized access, data manipulation, or pivoting to other internal systems. This could impact confidentiality and integrity of sensitive data managed through Vvveb. The remote exploitability without authentication increases the attack surface, particularly for organizations exposing administrative interfaces over the internet. Given the medium severity, the impact might be limited if proper network segmentation and access controls are in place, but organizations lacking these controls could face service disruption or data breaches. The vulnerability could also be leveraged in targeted attacks against European entities with high-value content management systems or web infrastructure relying on Vvveb.

Summary

CVE-2025-8975 is a cross-site scripting (XSS) vulnerability identified in the givanz Vvveb product, affecting versions 1.0.0 through 1.0.5. The vulnerability resides in the admin/template/content/edit.tpl file, specifically through improper handling of the 'slug' argument. An attacker can remotely exploit this flaw by injecting malicious scripts into the vulnerable parameter, which are then executed in the context of an administrator's browser session. This can lead to session hijacking, defacement, or redirection to malicious sites. The vulnerability does not require authentication (AV:N) but does require low privileges (PR:L) and some user interaction (UI:P), such as an administrator accessing a crafted URL or interface. The CVSS 4.0 base score is 5.1, indicating a medium severity level, with low attack complexity and no requirement for user credentials. The vulnerability was publicly disclosed on August 14, 2025, and a patch is available in version 1.0.6, identified by patch hash 84c11d69df8452dc378feecd17e2a62ac10dac66. No known exploits are currently reported in the wild, but public disclosure increases the risk of exploitation. Given the vulnerability affects the administrative interface, successful exploitation could compromise administrative control and potentially lead to further system compromise or data leakage.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Aug 2025, 19:02 UTC

Technical details

References

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