CVE-2024-58319VulnerabilityPublished 18 Dec 2025Updated 30 Dec 2025

CVE-2024-58319: Kentico Xperience · Cross-site Scripting

Affects Kentico XperienceSource 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: 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: Active
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: None
Subsequent system confidentiality: Low
Subsequent system integrity: Low
Subsequent system availability: None

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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: Active: Successful exploitation of this vulnerability requires a targeted user to perform specific, conscious interactions with the vulnerable system and the attacker’s payload, or the user’s interactions would actively subvert protection mechanisms which would lead to exploitation of the vulnerability.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system 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 Subsequent System.
Subsequent 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 Subsequent 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.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Dec 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
Kentico Xperience	Affected =0	Fixed in–

AI-suggested

European organizations should implement the following specific mitigations: 1) Restrict access to the Kentico Xperience administrative dashboard to trusted IP ranges and enforce strong multi-factor authentication for all administrative users to reduce the risk of compromised credentials. 2) Educate administrators about phishing and social engineering risks to prevent clicking on malicious links that exploit this vulnerability. 3) Monitor web server and application logs for unusual or suspicious requests targeting the Pages dashboard widget configuration dialog. 4) Employ web application firewalls (WAFs) with custom rules to detect and block reflected XSS payloads targeting Kentico Xperience. 5) Apply strict Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in administrative interfaces. 6) Regularly check for and promptly apply vendor patches or updates addressing this vulnerability once released. 7) Consider isolating the administrative interface on a separate network segment or VPN to reduce exposure. 8) Conduct internal penetration testing focused on XSS vulnerabilities in administrative modules to identify and remediate similar issues proactively.

Description

A reflected cross-site scripting vulnerability in Kentico Xperience allows attackers to inject malicious scripts via the Pages dashboard widget configuration dialog. Attackers can exploit this vulnerability to execute malicious scripts in administrative users' browsers.

Impact

For European organizations, this vulnerability poses a moderate risk primarily to the confidentiality and integrity of administrative sessions within Kentico Xperience environments. Successful exploitation could allow attackers to hijack administrator sessions, modify website content, or perform unauthorized administrative actions, potentially leading to defacement, data leakage, or further compromise of internal systems. Organizations relying on Kentico Xperience for critical web content management, especially those with multiple administrative users, face increased risk. The reflected nature of the XSS means attacks require social engineering to lure administrators into clicking malicious links, but given the high privileges of these users, the impact can be significant. Additionally, compromised administrative accounts could be leveraged to distribute malware or phishing content to end users. The absence of known exploits reduces immediate risk, but the medium severity score and lack of patches mean organizations should act proactively. The impact on availability is minimal, but the potential for reputational damage and regulatory consequences under GDPR for data breaches is notable.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 1 Jan 2026, 22:29 UTC

Technical details

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