VulnerabilityPublished 23 Feb 2026Updated 25 Feb 2026

CVE-2026-3028: erzhongxmu JEEWMS · Cross-site Scripting

Affects erzhongxmu JEEWMSSource CVE Database V5

Compare

Public exploit available · CVSS 5.3 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 30% 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:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

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

Threat metrics

Exploit Maturity: POC

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: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable 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 Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable 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.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 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

Affected software

Product	Affected	Fixed in
erzhongxmuJEEWMS	Affected 3.0 – 3.7 8 affected builds	Fixed in–
Mavenerzhongxmu/JEEWMS`pkg:maven/erzhongxmu/JEEWMS`Other threats	Affected 3.0 – 3.7 8 affected builds	Fixed in–

CPE configurations (1)

cpe:2.3:a:jeewms:jeewms:*:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Given the absence of official patches, organizations should implement immediate compensating controls. First, apply strict input validation on the 'Name' parameter to reject or sanitize any suspicious characters or scripts before processing. Second, enforce output encoding (e.g., HTML entity encoding) on all user-supplied data rendered in the web interface to prevent script execution. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. Monitor web server logs and application behavior for unusual or suspicious requests targeting the vulnerable endpoint. Educate users about the risks of clicking on untrusted links and encourage the use of updated browsers with built-in XSS protections. Where feasible, isolate or limit access to the affected application to trusted networks or VPNs to reduce exposure. Finally, maintain vigilance for vendor updates or third-party patches and plan for timely application once available.

Description

A vulnerability was determined in erzhongxmu JEEWMS up to 3.7. This vulnerability affects the function doAdd of the file src/main/java/com/jeecg/demo/controller/JeecgListDemoController.java. This manipulation of the argument Name causes cross site scripting. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

The primary impact of CVE-2026-3028 is the potential compromise of user confidentiality and integrity through cross-site scripting attacks. Attackers can execute arbitrary scripts in the context of authenticated users, potentially stealing session cookies, redirecting users to malicious sites, or performing actions on behalf of the user without their consent. This can lead to account takeover, data leakage, and erosion of user trust. Since the vulnerability is remotely exploitable without authentication, it broadens the attack surface significantly. Organizations relying on affected versions of JEEWMS may face reputational damage, regulatory compliance issues, and operational disruptions if attackers leverage this vulnerability. The lack of vendor response and patches increases the window of exposure. Although availability is not directly impacted, the indirect effects of successful attacks could disrupt normal business operations. The medium severity rating suggests a moderate but non-negligible risk, especially for organizations with sensitive data or critical workflows managed through JEEWMS.

Summary

CVE-2026-3028 identifies a cross-site scripting (XSS) vulnerability in the erzhongxmu JEEWMS web management system, specifically affecting versions 3.0 through 3.7. The vulnerability resides in the doAdd method within the JeecgListDemoController.java source file, where the 'Name' parameter is improperly sanitized or encoded before being reflected in the web response. This flaw allows an attacker to inject malicious JavaScript code that executes in the context of a victim's browser when they interact with a crafted URL or input. The attack vector is remote and does not require authentication, increasing the attack surface. The CVSS 4.0 score of 5.3 reflects a medium severity, considering the attack complexity is low, no privileges or user interaction are required for the initial attack vector, but user interaction is needed to trigger the script execution. The vulnerability impacts confidentiality and integrity by enabling potential session hijacking, credential theft, or phishing attacks. The vendor was notified but has not issued a patch or response, and no official fixes or workarounds have been published. Public disclosure of the exploit code increases the risk of exploitation, although no active exploitation has been reported. This vulnerability highlights the importance of proper input validation and output encoding in web applications to prevent XSS attacks.

References

Community reviews

Loading reviews…