neo4j Enterprise Edition/Community Edition 4.4.48/5.26.20/5.26.21 Query Log cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k1.93

Summaryinfo

A vulnerability marked as problematic has been reported in neo4j Enterprise Edition and Community Edition. This vulnerability affects unknown code of the component Query Log. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2026-1337. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in neo4j Enterprise Edition and Community Edition and classified as problematic. Affected by this vulnerability is an unknown code of the component Query Log. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. 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. As an impact it is known to affect integrity. The summary by CVE is:

Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01. Proof of concept exploit:  https://github.com/JoakimBulow/CVE-2026-1337

The weakness was disclosed by Joakim Bülow. The advisory is shared at github.com. This vulnerability is known as CVE-2026-1337 since 01/22/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 298971 (Neo4j < 2026.01 XSS Vulnerability (CVE-2026-1337)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2026.01.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (298971). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298971
Nessus Name: Neo4j < 2026.01 XSS Vulnerability (CVE-2026-1337)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Enterprise Edition/Community Edition 2026.01.0

Timelineinfo

01/22/2026 CVE reserved
02/06/2026 +15 days Advisory disclosed
02/06/2026 +0 days VulDB entry created
02/26/2026 +20 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Researcher: Joakim Bülow
Status: Confirmed

CVE: CVE-2026-1337 (🔒)
GCVE (CVE): GCVE-0-2026-1337
GCVE (VulDB): GCVE-100-344677
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/06/2026 15:11
Updated: 02/26/2026 13:28
Changes: 02/06/2026 15:11 (72), 02/07/2026 09:22 (2), 02/14/2026 18:48 (2), 02/26/2026 13:28 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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