VulnerabilityPublished 13 Jul 2026

CVE-2026-45376: Decidim · Admin user search allows SQL injection through similarity-based sorting

Affects decidim-adminSource GCVE Database

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Not known to be exploited · CVSS 6.8 Medium : upgrade to 0.30.9 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score

6.8Medium

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

EPSS: 0.6% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 0.30.9, 0.31.5, 0.32.0

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

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

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

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).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
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: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 13 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 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

Upgrade decidim-admin to 0.30.9; decidim-admin to 0.31.5; decidim-admin to 0.32.0.

Affected software

Product	Affected	Fixed in
RubyGemsdecidim-admin	Affected <0.30.9	Fixed in 0.30.9
RubyGemsdecidim-admin	Affected >=0.31.0.rc1 <0.31.5	Fixed in 0.31.5
RubyGemsdecidim-admin	Affected >=0.32.0.rc1 <0.32.0	Fixed in 0.32.0

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

AI-suggested

A patch addressing this vulnerability is available in Decidim version 0.30.9 and later, as referenced in the Decidim GitHub pull request #16668. Users should upgrade to version 0.30.9 or later to remediate the issue. As a temporary workaround, restrict administrator access to trusted users only. No other mitigations are specifically recommended by the vendor advisory.

Description

Decidim-admin versions prior to 0.30.9 contain an SQL injection vulnerability in the admin organization user search feature. The vulnerability arises because user-supplied input is directly interpolated into raw SQL ORDER BY clauses without proper sanitization, allowing authenticated admin users to inject arbitrary SQL expressions. Exploitation requires admin authentication and can be used to perform blind SQL injection via timing attacks, potentially exposing sensitive data accessible to the database role. The vulnerability can also be abused to degrade service availability by causing long-running queries.

Impact

An authenticated organization admin can exploit this vulnerability to execute arbitrary SQL expressions within the database ORDER BY clause. This can lead to unauthorized data disclosure through blind SQL injection techniques, such as timing attacks, and potential denial of service by causing long-running queries. The impact is limited by the requirement for admin authentication but remains significant due to the ability to execute arbitrary SQL within the database context. The vulnerability does not directly affect data integrity or availability beyond induced delays but can expose sensitive information accessible to the database user.

Summary

The Decidim-admin application exposes an SQL injection vulnerability (CVE-2026-45376) in the GET /admin/organization/users endpoint. The vulnerability is due to unsafe interpolation of the user-controlled 'term' parameter into raw SQL ORDER BY expressions used for similarity-based sorting. Although the WHERE clauses use bind parameters, the ORDER BY clauses use Arel.sql with interpolated strings, bypassing Rails sanitization. This allows an authenticated admin user to inject arbitrary SQL code into the ORDER BY clause, which PostgreSQL executes as part of the sorting operation. Exploitation can be performed via blind SQL injection techniques, such as time delays using pg_sleep, to infer data or degrade availability. The issue affects decidim-admin versions before 0.30.9. A patch is referenced in the Decidim GitHub repository pull request #16668.

CWE-89Improper Neutralization of Special Elements used in an SQL Command (SQL Injection) (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #2OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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.
Architecture and Design · Parameterization
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
Architecture and Design · Operation · Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment.
OWASP Cheat Sheets
Query Parameterization (opens in a new tab)
Unvalidated Redirects and Forwards (opens in a new tab)
XML Security (opens in a new tab)
XML External Entity Prevention (opens in a new tab)
File Upload (opens in a new tab)
OWASP ASVS 4.0.3
V5.3.4 (opens in a new tab)
V5.3.5 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
Command Line Execution through SQL Injection (opens in a new tab)
Object Relational Mapping Injection (opens in a new tab)
SQL Injection through SOAP Parameter Tampering (opens in a new tab)
Expanding Control over the Operating System from the Database (opens in a new tab)
SQL Injection (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2026, 10:02 UTC

WeaknessesCWE-89

Technical details

References

Community reviews

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