VulnerabilityPublished 3 Mar 2026

CVE-2026-25590: glpi-inventory-plugin · Cross-site Scripting

Affects glpi-inventory-pluginSource CVE Database V5

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Not known to be exploited · CVSS 4.5 Medium : upgrade to 1.6.6 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

4.5Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.6.6

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

Attack Vector: Network
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: 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: 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 3 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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

Upgrade glpi-inventory-plugin and glpi-project/glpi-inventory-plugin to 1.6.6.

Affected software

Product	Affected	Fixed in
glpi-projectglpi-inventory-plugin	Affected <1.6.6	Fixed in 1.6.6
GitHubglpi-project/glpi-inventory-plugin`pkg:github/glpi-project/glpi-inventory-plugin`Other threats	Affected <1.6.6	Fixed in 1.6.6

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-2026-25590, organizations should immediately upgrade the GLPI Inventory Plugin to version 1.6.6 or later, where the vulnerability is patched. In addition to patching, administrators should enforce the principle of least privilege by restricting access to the GLPI interface and limiting high-privilege accounts to trusted personnel only. Implementing Content Security Policy (CSP) headers can help reduce the impact of XSS by restricting the execution of unauthorized scripts. Regularly auditing user accounts and monitoring for suspicious activities can detect potential exploitation attempts. Web application firewalls (WAFs) configured to detect and block reflected XSS payloads may provide an additional layer of defense. Finally, educating users about the risks of clicking on untrusted links or interacting with suspicious content within the GLPI environment can reduce the likelihood of successful exploitation.

Description

The GLPI Inventory Plugin handles network discovery, inventory, software deployment, and data collection for GLPI agents. Prior to 1.6.6, there is a reflected XSS vulnerability in task jobs. This vulnerability is fixed in 1.6.6.

Impact

The primary impact of CVE-2026-25590 is on the confidentiality of data within organizations using the GLPI Inventory Plugin versions prior to 1.6.6. Successful exploitation allows an attacker to execute arbitrary JavaScript in the context of an authenticated user's browser, potentially leading to session hijacking, theft of sensitive information, or unauthorized actions performed on behalf of the user. Since the vulnerability requires authenticated access with high privileges and user interaction, the attack surface is limited to insiders or attackers who have compromised credentials. However, in environments where GLPI is used for critical IT asset management and network inventory, such an attack could facilitate further lateral movement or data exfiltration. The reflected XSS does not affect system integrity or availability directly but can be a stepping stone for more complex attacks. Organizations worldwide relying on GLPI for IT management could face targeted attacks aiming to compromise administrative sessions or extract confidential inventory data, impacting operational security and compliance.

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

github.com/glpi-project/glpi-inventory-plugin/security/advisories/GHSA-54x7-6fhx-3wmw (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Mar 2026, 22:48 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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