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CVE Record

CVE-2026-46670: YesWiki: Unauthenticated SQL Injection

YesWiki is a wiki system written in PHP. Prior to version 4.6.4, an unauthenticated SQL injection in the Bazar form-import path (`FormManager::create()`) allows any unauthenticated visitor of a default YesWiki install to inject arbitrary SQL into an `INSERT` statement and read the full database, including `yeswiki_users.password` hashes. Version 4.6.4 fixes the issue.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

YesWiki versions before 4.6.4 contain a critical database injection flaw reachable without authentication. An internet visitor could access or alter sensitive database content, including stored user password hashes, and potentially disrupt service. Public-facing default installations are the highest priority.

Executive priority

Treat this as an immediate remediation item. Upgrade exposed systems first, preserve relevant logs, and initiate compromise assessment. Because password hashes may be disclosed and database contents altered, potentially affected systems warrant credential and data-integrity review even without confirmed active exploitation.

Technical view

The Bazar form-import path passes attacker-controlled input through FormManager::create() into an INSERT statement, enabling unauthenticated SQL injection. The CVSS 3.1 score is 9.8 because exploitation requires no privileges or user interaction and may severely affect confidentiality, integrity, and availability. CWE-89 applies.

Likely exposure

YesWiki installations running versions earlier than 4.6.4 are affected. Exposure is greatest when the vulnerable Bazar form-import functionality is reachable from untrusted networks. The supplied sources specifically describe default installations as remotely accessible to unauthenticated visitors.

Exploitation context

The vulnerability is remotely reachable, low complexity, and requires neither authentication nor user interaction. It can disclose the full database, including yeswiki_users.password hashes. The supplied bundle reports no CISA KEV listing and provides no evidence of active exploitation in the wild.

Researcher notes

The source bundle identifies the vulnerable sink as an INSERT statement reached through Bazar form import and FormManager::create(). It does not provide evidence of exploitation in the wild, detailed indicators of compromise, affected configuration exceptions, or mitigations beyond upgrading. Validate those details against current vendor guidance.

Mitigation direction

  • Upgrade YesWiki to version 4.6.4 or later.
  • Prioritize internet-facing and default-configured installations.
  • Restrict untrusted access to affected YesWiki instances until upgraded.
  • Review vendor guidance for any additional remediation or compromise indicators.
  • Require password resets if investigation indicates password hashes were accessed.

Validation and detection

  • Inventory deployed YesWiki versions and identify every instance below 4.6.4.
  • Confirm whether affected instances are reachable from the internet or other untrusted networks.
  • Verify the deployed application reports version 4.6.4 or later after upgrading.
  • Review database and application logs for unusual form-import activity or unexpected queries.
  • Assess database integrity and investigate possible disclosure of stored password hashes.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

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 lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database 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 lookup
cve · low confidence lookup

CVE-2026-46670 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9GitHub_M

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-46670Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
YesWikiyeswiki< 4.6.4Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-89 · source CWE mapping

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.