Security readout for executives and security teams
Plain-English summary
This flaw can let a remote attacker read sensitive data from a LimeSurvey database on vulnerable versions before v6.15.4+250710. The published CVSS vector indicates network access, low attack complexity, no privileges, and no user interaction, making exposed instances the main business concern.
Executive priority
Treat this as a high-priority confidentiality issue. Public-facing LimeSurvey systems or deployments handling sensitive survey responses should be addressed first because the reported impact is database information exposure without requiring authentication.
Technical view
CVE-2025-56421 is a CWE-89 SQL injection issue in LimeSurvey before v6.15.4+250710. The CVSS 3.1 score is 7.5 with high confidentiality impact and no stated integrity or availability impact. The source bundle does not provide a vulnerable endpoint, parameter, CPE, or detailed root cause.
Likely exposure
Organizations running LimeSurvey versions earlier than v6.15.4+250710 are potentially exposed, especially if the service is reachable from the internet. Exact affected CPE data is absent in the CVE record bundle, so inventory confirmation is required.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source states active exploitation. The risk is still material because the CVSS vector indicates unauthenticated, low-complexity remote exploitation with potential database information disclosure.
Researcher notes
Evidence is limited. The bundle identifies SQL injection, version boundary, CVSS vector, and one GitHub advisory reference, but it lacks endpoint details, affected CPEs, exploit evidence, and vendor remediation notes. Avoid assuming broader product impact beyond LimeSurvey before v6.15.4+250710.
Mitigation direction
- Inventory all LimeSurvey instances and record exact versions.
- Upgrade affected instances to v6.15.4+250710 or later after vendor verification.
- Restrict public access where LimeSurvey does not need internet exposure.
- Review vendor guidance and the cited advisory for updated remediation details.
- Increase monitoring for database errors and unusual survey request patterns.
Validation and detection
- Confirm each LimeSurvey instance is v6.15.4+250710 or later.
- Check whether any LimeSurvey instance is internet-facing.
- Review web and database logs for suspicious errors or abnormal query behavior.
- Verify the CVE is tracked in vulnerability management with owner and due date.
- Document any compensating access controls for delayed upgrades.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-56421 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:N/A:N3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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-2025-56421.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.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.