CVE-2025-9137VulnerabilityPublished 19 Aug 2025Updated 26 Aug 2025

CVE-2025-9137: Scada-LTS · Cross Site Scripting

Affects Scada-LTSSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 25 Oct 2026, 19:02 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 22% 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 19 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 2026-10-25.

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
Scada-LTS	Affected =2.7.8.1	Fixed in–

AI-suggested

1. Enforce strict access controls and multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise. 2. Implement robust monitoring and logging of admin activities within Scada-LTS to detect anomalous behavior indicative of exploitation or insider threats. 3. Limit the number of admin users and regularly review their privileges to ensure least privilege principles are applied. 4. Apply input validation and output encoding on the 'alias' parameter in scheduled_events.shtm to prevent injection of malicious scripts, once a vendor patch or update is available. 5. If immediate patching is not possible, consider network segmentation and firewall rules to restrict access to the Scada-LTS admin interface only to trusted hosts and networks. 6. Conduct regular security awareness training for administrators emphasizing the risks of misuse of their privileges and the importance of secure credential handling. 7. Evaluate the possibility of deploying web application firewalls (WAF) with custom rules to detect and block XSS payloads targeting the affected parameter.

Description

A vulnerability has been found in Scada-LTS 2.7.8.1. This impacts an unknown function of the file scheduled_events.shtm. Such manipulation of the argument alias leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor explains: "[T]he risks of indicated vulnerabilities seem to be minimal as all scenarios likely require admin permissions. Moreover, regardless our team fixes those vulnerabilities - the overall risk change to the user due to malicious admin actions will not be lower. An admin user - by definition - has full control over HTML and JS code that is delivered to users in regular synoptic panels. In other words - due to the design of the system it is not possible to limit the admin user to attack the users."

Impact

For European organizations utilizing Scada-LTS 2.7.8.1 in their industrial control systems or critical infrastructure monitoring, this vulnerability presents a moderate risk primarily due to the requirement of administrative access for exploitation. If an attacker gains or already possesses admin credentials, they could inject malicious scripts that might compromise the integrity of displayed data or manipulate user sessions, potentially leading to misinformation or unauthorized control actions. However, since admin users inherently have broad control over the system, the incremental risk introduced by this XSS flaw is limited. The main impact lies in the potential for insider threats or compromised admin accounts rather than external attackers exploiting the vulnerability directly. Given the critical nature of SCADA systems in sectors such as energy, manufacturing, and utilities across Europe, any compromise of admin accounts could have serious operational consequences. Therefore, while the vulnerability itself is not highly critical, it underscores the need for stringent admin account security and monitoring to prevent abuse that could disrupt industrial processes or cause safety hazards.

Summary

CVE-2025-9137 is a cross-site scripting (XSS) vulnerability identified in Scada-LTS version 2.7.8.1, specifically affecting an unknown function within the file scheduled_events.shtm. The vulnerability arises from improper sanitization or validation of the 'alias' argument, which allows an attacker to inject malicious JavaScript code remotely. This type of vulnerability can enable attackers to execute arbitrary scripts in the context of the victim's browser, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. However, the vendor notes that exploitation scenarios require administrative privileges, as only admin users can manipulate the affected parameter. Given the design of Scada-LTS, where admin users inherently have full control over HTML and JavaScript code delivered to end users via synoptic panels, the risk posed by this vulnerability is considered minimal. The vendor further explains that fixing this vulnerability does not significantly reduce the risk of malicious admin actions, as admins already possess extensive control over the system's content and behavior. The CVSS v4.0 base score is 5.1 (medium severity), reflecting the requirement for privileges and user interaction, but with network attack vector and low attack complexity. No known exploits are currently reported in the wild, and no patches have been linked yet. This vulnerability highlights the importance of strict access control and monitoring of admin accounts in SCADA environments to prevent misuse of their elevated privileges.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Aug 2025, 00:45 UTC

Technical details

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