Security readout for executives and security teams
Plain-English summary
CVE-2025-56422 is a critical LimeSurvey flaw reported in versions before v6.15.0+250623. It can let a remote unauthenticated attacker run code on the server, potentially compromising survey data and the hosting system.
Executive priority
Handle as urgent for any exposed LimeSurvey deployment. The combination of critical CVSS, unauthenticated network reachability, and possible server code execution creates material business risk.
Technical view
The vulnerability is CWE-502 unsafe deserialization in LimeSurvey before v6.15.0+250623. The CVSS 3.1 score is 9.8 with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Organizations running internet-accessible LimeSurvey versions earlier than v6.15.0+250623 should treat exposure as high. The source bundle does not provide CPEs or detailed affected-version ranges beyond that cutoff.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source confirms active exploitation. The risk remains severe because the described impact is remote arbitrary code execution without authentication.
Researcher notes
Public details in the bundle are sparse. The record identifies LimeSurvey, unsafe deserialization, and the version cutoff, but does not provide affected CPEs, attack surface specifics, indicators, or confirmed exploitation.
Mitigation direction
- Upgrade LimeSurvey to v6.15.0+250623 or later where applicable.
- Check LimeSurvey vendor guidance for any additional remediation instructions.
- Reduce internet exposure for affected LimeSurvey instances until remediated.
- Prioritize backup review and recovery readiness for impacted servers.
Validation and detection
- Inventory all LimeSurvey deployments and confirm their exact versions.
- Flag any instance running earlier than v6.15.0+250623.
- Confirm whether affected instances are reachable from the internet.
- Review application and server logs for unusual errors or unexpected code execution indicators.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-56422 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/hongancalif/security-advisories/blob/main/CVE-2025-56422.mdCVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.