VDB-367676 · Submit #829404 · CVE-2026-10581

DedeCMS 5.7.88 download.php?open=1 base64_decode Link server-side request forgery

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.
5.7	$0-$5k	0.69

Summaryinfo

A vulnerability categorized as critical has been discovered in DedeCMS 5.7.88. Affected by this issue is the function base64_decode of the file /plus/download.php?open=1. Such manipulation of the argument Link leads to server-side request forgery. This vulnerability is documented as CVE-2026-10581. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in DedeCMS 5.7.88. It has been rated as critical. Affected by this issue is the function base64_decode of the file /plus/download.php?open=1. The manipulation of the argument link with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability.

This vulnerability is handled as CVE-2026-10581. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known.

It is declared as proof-of-concept.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Content Management System

Name

DedeCMS

Version

5.7.88

License

commercial

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/01/2026 Advisory disclosed
06/01/2026 +0 days VulDB entry created
06/01/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2026-10581 (🔒)
GCVE (CVE): GCVE-0-2026-10581
GCVE (VulDB): GCVE-100-367676
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/01/2026 20:00
Changes: 06/01/2026 20:00 (54)
Complete: 🔍
Submitter: R21Z20
Cache ID: 216::103

Submitinfo

Accepted

Submit #829404: DedeCMS DedeCMS Content Management System v5.7.88 Server-Side Request Forgery (SSRF) / Open Redirect (by R21Z20)