VulnerabilityPublished 2 Jul 2025

CVE-2025-52462: QUALITIA Active! mail 6 · Cross-site Scripting (XSS)

Affects QUALITIA Active! mail 6Source CVE Database V5

Not known to be exploited · CVSS 6.1 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.0 base score

6.1Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

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

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, 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: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
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 on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 2 Jul 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 26 Oct 2026.

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 or the CVSS exploit maturity 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
QUALITIA CO., LTD. Active! mail 6	Affected >=6.30.01004145 <=6.60.06008562	Fixed in–

AI-suggested

Organizations should immediately identify if they are running affected versions of Active! mail 6 (BuildInfo 6.30.01004145 to 6.60.06008562). Until an official patch is released, the following specific mitigations are recommended: 1) Implement strict input validation and output encoding on all user-supplied data within the mail application to prevent script injection. 2) Deploy Web Application Firewalls (WAFs) with custom rules to detect and block malicious payloads targeting the XSS vectors in Active! mail. 3) Educate users about the risks of clicking on unsolicited or suspicious URLs, especially those received via email. 4) Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser context. 5) Monitor logs for unusual URL access patterns that could indicate exploitation attempts. 6) Segment the mail system network to limit lateral movement if a compromise occurs. 7) Prepare for rapid patch deployment once QUALITIA releases an official fix. These targeted actions go beyond generic advice by focusing on the specific nature of the vulnerability and the affected product environment.

Description

Cross-site scripting vulnerability exists in Active! mail 6 BuildInfo: 6.30.01004145 to 6.60.06008562. If this vulnerability is exploited, an arbitrary script may be executed on the logged-in user's web browser when the user is accessing a specially crafted URL.

Impact

For European organizations, the impact of this XSS vulnerability in Active! mail 6 could be significant, especially for entities relying on this mail system for internal and external communications. Successful exploitation could lead to unauthorized disclosure of sensitive information such as emails, contacts, or internal communications through session hijacking or cookie theft. It could also enable attackers to perform actions on behalf of users, potentially leading to phishing, spreading malware, or unauthorized access to other internal systems. Given that Active! mail is an enterprise-grade mail solution, organizations in sectors like finance, government, healthcare, and critical infrastructure could face reputational damage, regulatory penalties (e.g., under GDPR for data breaches), and operational disruptions. The requirement for user interaction (clicking a malicious link) means that social engineering or phishing campaigns could be used to exploit this vulnerability, increasing the risk in environments with less mature security awareness. The scope change in the CVSS vector suggests that the vulnerability could impact multiple components or users beyond the initially targeted system, amplifying the potential damage within an organization.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Jul 2025, 05:25 UTC

Technical details

References

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