VDB-364386 · Submit #811316 · CVE-2026-8759

xiandafu beetl up to 3.20.2 SpELFunction SpELFunction.java expression language injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in xiandafu beetl up to 3.20.2. Affected by this vulnerability is an unknown functionality of the file beetl-classic-integration/beetl-spring-classic/src/main/java/org/beetl/ext/spring/SpELFunction.java of the component SpELFunction. The manipulation results in expression language injection. This vulnerability is identified as CVE-2026-8759. The attack can be executed remotely. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability, which was classified as critical, was found in xiandafu beetl up to 3.20.2. Affected is an unknown functionality of the file beetl-classic-integration/beetl-spring-classic/src/main/java/org/beetl/ext/spring/SpELFunction.java of the component SpELFunction. The manipulation with an unknown input leads to a expression language injection vulnerability. CWE is classifying the issue as CWE-917. The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at gitee.com. This vulnerability is traded as CVE-2026-8759. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at gitee.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-30704). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

xiandafu

Name

beetl

Version

Website

Product: https://gitee.com/xiandafu/beetl/

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: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.3
CNA Vector: 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Expression language injection
CWE: CWE-917 / CWE-20
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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/16/2026 Advisory disclosed
05/16/2026 +0 days VulDB entry created
05/22/2026 +6 days VulDB entry last update

Sourcesinfo

Product: gitee.com

Advisory: IIYAWC
Status: Not defined

CVE: CVE-2026-8759 (🔒)
GCVE (CVE): GCVE-0-2026-8759
GCVE (VulDB): GCVE-100-364386
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/16/2026 19:50
Updated: 05/22/2026 09:58
Changes: 05/16/2026 19:50 (57), 05/17/2026 18:12 (1), 05/22/2026 09:58 (31)
Complete: 🔍
Submitter: pigpig
Cache ID: 216::103

Submitinfo

Accepted

Submit #811316: Beetl <= 3.20.2.RELEASE Code Injection (by pigpig)

If you want to get best quality of vulnerability data, you may have to visit VulDB.