VulnerabilityPublished 17 Jan 2026Updated 26 Feb 2026

CVE-2026-1049: LigeroSmart · Cross-site Scripting

Affects LigeroSmartSource CVE Database V5

Public exploit available · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 14% 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 17 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, 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
LigeroSmart	Affected 6.1.0 – 6.1.26 27 affected builds	Fixed in–
GitHubligerosmart/ligerosmart`pkg:github/ligerosmart/ligerosmart`Other threats	Affected 6.1.0 – 6.1.26 27 affected builds	Fixed in–

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

AI-suggested

Until an official patch is released, organizations should implement strict input validation and output encoding on the TicketID parameter to neutralize malicious scripts. Web application firewalls (WAFs) can be configured to detect and block suspicious payloads targeting the /otrs/index.pl endpoint. Administrators should educate users about the risks of clicking untrusted links and consider disabling or restricting access to vulnerable endpoints if feasible. Monitoring web server logs for unusual requests to /otrs/index.pl with suspicious TicketID values can help detect attempted exploitation. Employing Content Security Policy (CSP) headers can mitigate the impact of XSS by restricting script execution sources. Regular backups and incident response plans should be updated to address potential compromise scenarios. Organizations should track LigeroSmart updates closely and apply patches immediately upon release. If possible, isolating the LigeroSmart instance behind VPN or internal networks can reduce exposure to external attackers.

Description

A security vulnerability has been detected in LigeroSmart up to 6.1.26. The affected element is an unknown function of the file /otrs/index.pl. Such manipulation of the argument TicketID leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Impact

The primary impact of CVE-2026-1049 is the potential compromise of user confidentiality and integrity within LigeroSmart deployments. Successful exploitation can lead to theft of session cookies, enabling attackers to impersonate legitimate users, potentially including administrators. This can result in unauthorized access to sensitive ticketing data, manipulation of support requests, and exposure of internal communications. The vulnerability does not directly affect system availability but can undermine trust in the affected service. Organizations relying on LigeroSmart for customer support or internal ticket management may face data breaches, reputational damage, and compliance issues. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to lure victims. The absence of an official patch prolongs exposure, increasing the risk of targeted attacks especially in sectors where LigeroSmart is widely used.

Summary

CVE-2026-1049 identifies a cross-site scripting vulnerability in LigeroSmart, a helpdesk and ticketing system, affecting all versions up to 6.1.26. The vulnerability resides in the /otrs/index.pl script, specifically related to the TicketID parameter, which is improperly sanitized. This allows an attacker to inject arbitrary JavaScript code that executes in the context of the victim's browser when they access a crafted URL. The attack vector is remote and does not require authentication, though user interaction is necessary to trigger the malicious payload. The vulnerability can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The LigeroSmart project was notified early but has not yet responded or provided a patch, increasing the window of exposure. The CVSS 4.0 base score of 5.1 reflects a medium severity, with network attack vector, low attack complexity, no privileges required, and user interaction needed. The vulnerability impacts confidentiality and integrity but not availability. No public exploits are currently known, but the public disclosure may prompt attackers to develop exploits. The lack of a patch necessitates immediate mitigation steps by administrators to reduce risk.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Mar 2026, 20:14 UTC

Technical details

References

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