CVE-2025-66421VulnerabilityPublished 30 Nov 2025Updated 1 Dec 2025

CVE-2025-66421: Tryton sao · XSS or 'Cross-site Scripting'

Affects Tryton saoSource CVE Database V5

Not known to be exploited · CVSS 5.4 Medium · fixed in 7.6.11 : update Tryton sao when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

5.4Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 7.6.11, 7.4.21, 7.0.40 +1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
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: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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 30 Nov 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

Upgrade tryton/sao to 7.6.11, 7.4.21, 7.0.40 or 6.0.69.

Affected software

Product	Affected	Fixed in
npmtryton/sao`pkg:npm/tryton/sao`Other threats	Affected <6.0.69 <7.0.40 <7.4.21 <7.6.11 =0 =7.0.0 =7.1.0 =7.5.0	Fixed in 6.0.69 7.0.40 7.4.21 7.6.11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately verify their Tryton sao versions and upgrade to the patched releases: 7.6.11, 7.4.21, 7.0.40, or 6.0.69. If immediate patching is not feasible, implement web application firewalls (WAFs) with rules to detect and block typical XSS payloads targeting completion fields. Conduct user awareness training to reduce the risk of social engineering that could trigger user interaction with malicious content. Review and harden input validation and output encoding practices in any custom modules or integrations with Tryton sao. Monitor logs for unusual user activity or script injection attempts. Employ Content Security Policy (CSP) headers to restrict script execution sources and reduce the impact of potential XSS attacks. Regularly audit and update all ERP components to maintain security hygiene. Coordinate with Tryton community and vendors for timely updates and security advisories.

Description

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Impact

For European organizations using Tryton sao, this vulnerability poses a risk of unauthorized script execution within user sessions, potentially leading to data leakage, session hijacking, or unauthorized actions performed on behalf of legitimate users. Given Tryton's use in managing enterprise resource planning, such attacks could expose sensitive financial, operational, or personal data. While the vulnerability does not affect system availability, the compromise of confidentiality and integrity can disrupt business operations and damage trust. Organizations in sectors such as finance, manufacturing, and public administration that rely on Tryton sao for critical workflows are particularly vulnerable. The requirement for user interaction and limited privileges reduces the risk somewhat but does not eliminate it, especially in environments with many users or where phishing and social engineering are common. The absence of known exploits in the wild suggests a window of opportunity for organizations to patch before active exploitation occurs.

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #1OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Implementation · Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages.
Architecture and Design · Implementation · Attack Surface Reduction
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide…
OWASP Cheat Sheets
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Injection Prevention (opens in a new tab)
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V5.3.3 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
XSS Using MIME Type Mismatch (opens in a new tab)
DOM-Based XSS (opens in a new tab)
Reflected XSS (opens in a new tab)
Stored XSS (opens in a new tab)
Cross-Site Scripting (XSS) (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Dec 2025, 04:29 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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