VulnerabilityPublished 15 Jul 2024Updated 30 Oct 2024

CVE-2024-31946: network-security · Cross-site Scripting

Affects network-securitySource CVE Database V5

Not known to be exploited · CVSS 4.2 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

4.2Medium

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.

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

Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

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

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within 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 15 Jul 2024
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
Stormshieldstormshield/network-security`pkg:rpm/stormshield/network-security`Other threats	Affected 3.7.0 <=3.7.41 3.10.0 <=3.11.29 4.0 <=4.3.24 4.4.0 <=4.7.4	Fixed in–

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

AI-suggested

To mitigate CVE-2024-31946, organizations should immediately upgrade affected Stormshield Network Security appliances to the fixed versions: 3.7.42, 3.11.30, 4.3.25, or 4.7.5, depending on their current version. Until patching is complete, restrict write access to the email alerts configuration page strictly to trusted administrators and monitor for unusual activity related to alert template modifications. Implement strong authentication controls, including multi-factor authentication (MFA), to reduce the risk of account compromise. Additionally, conduct regular audits of alert templates to detect unauthorized or suspicious JavaScript code. Network segmentation and least privilege principles should be enforced to limit the number of users with high-level SNS access. Security teams should also educate administrators about the risks of previewing untrusted templates and encourage cautious handling of alert configurations. Finally, monitor SNS logs and alerting behavior for anomalies that could indicate exploitation attempts or insider misuse.

Description

An issue was discovered in Stormshield Network Security (SNS) 3.7.0 through 3.7.41, 3.10.0 through 3.11.29, 4.0 through 4.3.24, and 4.4.0 through 4.7.4. A user who has access to the SNS with write access on the email alerts page has the ability to create alert email containing malicious JavaScript, executed by the template preview. The following versions fix this: 3.7.42, 3.11.30, 4.3.25, and 4.7.5.

Impact

The primary impact of CVE-2024-31946 is on the confidentiality of information within organizations using vulnerable SNS versions. An attacker with write access to the email alerts page can embed malicious JavaScript that executes in the context of the SNS management interface during template preview. This can lead to unauthorized disclosure of sensitive data, such as configuration details, alert information, or user session tokens. Although the vulnerability does not directly compromise system integrity or availability, it could facilitate further attacks by enabling session hijacking or privilege escalation if combined with other vulnerabilities. The requirement for high privileges and user interaction limits the scope of exploitation to insiders or compromised accounts with elevated rights. However, given the critical role of SNS appliances in network security monitoring and alerting, any compromise could undermine an organization's security posture and incident response capabilities. Organizations relying on SNS for perimeter defense or internal network segmentation may face increased risk of data leakage or lateral movement by attackers exploiting this vulnerability.

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

advisories.stormshield.eu/2024-007 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Feb 2026, 16:17 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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