VulnerabilityPublished 24 Sep 2025

CVE-2025-48867: horilla · Cross-site Scripting

Affects horillaSource CVE Database V5

Not known to be exploited · CVSS 4.8 Medium.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

4.8Medium

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
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: 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: 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 24 Sep 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 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
horilla-opensource horilla	Affected =1.3.0	Fixed in–

AI-suggested

Immediate mitigation should focus on restricting admin and privileged user access to trusted personnel only, enforcing strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of credential compromise.
Implement strict input validation and output encoding at the application or web server level as a temporary measure to neutralize malicious scripts, for example, using web application firewalls (WAFs) with custom rules targeting the vulnerable input fields.
Monitor logs and user activities for unusual behavior indicative of XSS exploitation attempts or session hijacking.
Limit the number of users with admin or privileged roles and regularly review permissions to minimize exposure.
Consider isolating the HRM system within a segmented network zone with restricted access to reduce lateral movement risk.
Stay alert for vendor updates or community patches addressing this vulnerability and plan for timely application once available.
Educate privileged users about the risks of clicking on suspicious links or viewing untrusted content within the HRM interface.
If feasible, upgrade to a non-vulnerable version or alternative HRM solutions until a patch is released.

Description

Horilla is a free and open source Human Resource Management System (HRMS). A stored cross-site scripting (XSS) vulnerability in Horilla HRM 1.3.0 allows authenticated admin or privileged users to inject malicious JavaScript payloads into multiple fields in the Project and Task modules. These payloads persist in the database and are executed when viewed by an admin or other privileged users through the web interface. Although the issue is not exploitable by unauthenticated users, it still poses a high risk of session hijacking and unauthorized action within high-privilege accounts. At time of publication there is no known patch.

Impact

For European organizations using Horilla HRM 1.3.0, this vulnerability poses a risk to the confidentiality and integrity of sensitive HR data and administrative controls. Attackers with privileged access could inject malicious scripts that compromise sessions of other administrators or privileged users, potentially leading to unauthorized data access, manipulation of HR records, or disruption of HR workflows. Given the sensitive nature of HR data, including personal employee information and organizational structure, exploitation could lead to data breaches, regulatory non-compliance (e.g., GDPR violations), and reputational damage. The requirement for authenticated privileged access limits the attack surface but insider threats or compromised admin credentials could be leveraged. The lack of a patch means organizations must rely on compensating controls to mitigate risk. The medium CVSS score reflects moderate risk but the potential impact on high-privilege accounts elevates the threat in environments where Horilla HRM is critical to HR operations.

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/horilla-opensource/horilla/security/advisories/GHSA-w242-xv47-j55r (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 24 Sep 2025, 17:33 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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