VulnerabilityPublished 6 May 2024Updated 1 Nov 2024

CVE-2024-34090: Cross-site Scripting

Source CVE Database V5

Not known to be exploited · CVSS 7.3 High · fixed in 2024.04 : patch affected systems soon.

Data as of 26 Oct 2026, 09:08 UTC

CVSS 3.1 base score

7.3High

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

EPSS: 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 2024.04

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

Attack Complexity: Low
Attack Vector: Network
Availability: None
Confidentiality: High
Integrity: High
Privileges Required: Low
Scope: Unchanged
User Interaction: Required

Bold values are the worst case: easiest to exploit or largest impact.

Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
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).
Availability: None: There is no impact to availability within the impacted component.
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: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 6 May 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 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

Organizations should immediately upgrade affected Archer Platform instances to version 6.14 P3 (6.14.0.3) or later, where the vulnerability is patched. In environments where immediate patching is not feasible, administrators should restrict access to the Archer Control Panel login banner configuration to trusted personnel only and monitor for suspicious changes. Implementing web application firewalls (WAFs) with rules to detect and block XSS payloads targeting the login banner can provide temporary protection. Additionally, organizations should conduct regular security audits and user activity monitoring to detect anomalous behavior indicative of exploitation attempts. Educating users about the risks of clicking on unexpected or suspicious content within the ACP can reduce the likelihood of successful exploitation. Finally, applying content security policies (CSP) to limit script execution sources may help mitigate the impact of injected scripts if the platform supports such controls.

Description

An issue was discovered in Archer Platform 6 before 2024.04. There is a stored cross-site scripting (XSS) vulnerability. The login banner in the Archer Control Panel (ACP) did not previously escape content appropriately.6.14 P3 (6.14.0.3) is also a fixed release.

Impact

The impact of CVE-2024-34090 is significant for organizations using the Archer Platform, particularly those managing sensitive governance, risk, and compliance data. Successful exploitation can lead to the theft of user credentials or session cookies, enabling attackers to impersonate legitimate users and potentially escalate privileges within the ACP. This compromises the confidentiality and integrity of critical organizational data and workflows. Additionally, attackers could execute arbitrary scripts to manipulate the user interface or perform unauthorized actions, potentially disrupting compliance processes or altering risk assessments. Although availability is not directly affected, the indirect consequences of compromised user accounts and data integrity can severely impact organizational operations and trust. Given the platform's role in regulatory compliance and risk management, exploitation could also lead to regulatory penalties and reputational damage. The requirement for low privileges to inject the payload lowers the barrier for insider threats or attackers who have gained limited access, increasing the risk profile.

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

Loading reviews…

Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 28 Feb 2026, 03:07 UTC

WeaknessesCWE-79

Technical details

References

Community reviews

Related threats