VulnerabilityPublished 18 Apr 2024Updated 4 Nov 2025

CVE-2024-30920: DerbyNet · Cross-site Scripting

Source CVE Database V5

Not known to be exploited · CVSS 7.4 High.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

7.4High

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

EPSS: 1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
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: 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 18 Apr 2024
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

AI-suggested

European organizations should implement the following specific mitigation strategies: 1) Apply any available patches or updates from DerbyNet vendors immediately once released. 2) In the absence of patches, implement strict input validation and output encoding on the render-document.php component to neutralize potentially malicious input. 3) Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 4) Conduct user awareness training focused on recognizing phishing attempts and avoiding clicking suspicious links or documents. 5) Monitor web application logs for unusual or suspicious requests targeting render-document.php or related endpoints. 6) Use web application firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting DerbyNet. 7) Segment networks and restrict access to DerbyNet services to minimize exposure. 8) Review and harden session management practices to limit the impact of stolen session tokens. 9) Regularly audit and test web applications for XSS vulnerabilities using automated scanners and manual penetration testing. 10) Establish incident response procedures to quickly contain and remediate any exploitation attempts.

Description

Cross Site Scripting vulnerability in DerbyNet v9.0 and below allows a remote attacker to execute arbitrary code via the render-document.php component.

Impact

For European organizations, the primary impact of CVE-2024-30920 is the potential compromise of sensitive data confidentiality through the execution of malicious scripts in users' browsers. This can lead to session hijacking, credential theft, or unauthorized access to internal resources if attackers leverage stolen tokens or cookies. Organizations relying on DerbyNet for document management or web-based services may face increased risk of targeted phishing or spear-phishing attacks exploiting this vulnerability. Although the vulnerability does not directly affect system integrity or availability, the resulting data breaches or unauthorized access can cause significant operational disruption, reputational damage, and regulatory non-compliance, especially under GDPR. The requirement for user interaction means social engineering campaigns could be effective, increasing the threat surface. Additionally, the scope change in the vulnerability suggests that exploitation could impact multiple components or users beyond the initially targeted area, amplifying potential damage. European sectors such as finance, healthcare, and government, which often handle sensitive documents and rely on web-based platforms, are particularly vulnerable. The absence of known exploits in the wild currently provides a window for proactive defense, but the high CVSS score indicates that exploitation could have serious consequences.

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

Community reviews

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 4 Nov 2025, 18:44 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

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