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CVE Record

CVE-2026-25868: MiniGal Nano <= 0.3.5 Reflected XSS via dir Parameter

MiniGal Nano version 0.3.5 and prior contain a reflected cross-site scripting (XSS) vulnerability in index.php via the dir parameter. The application constructs $currentdir from user-controlled input and embeds it into an error message without output encoding, allowing an attacker to supply HTML/JavaScript that is reflected in the response. Successful exploitation can lead to execution of arbitrary script in a victim's browser in the context of the vulnerable application.

MediumCVSS 5.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

MiniGal Nano 0.3.5 and earlier can reflect attacker-supplied content from the dir parameter into a browser response without proper encoding. A victim must interact with a crafted link or request. Impact is browser-side script execution within the vulnerable gallery site, not direct server takeover.

Executive priority

Treat this as a moderate-priority web application issue. It is not described as actively exploited, but public-facing legacy gallery software can expose users to credential theft, session abuse, or phishing within a trusted site context.

Technical view

The issue is reflected XSS in index.php. User-controlled dir input is used to build $currentdir and then embedded in an error message without output encoding. CVSS 4.0 score is 5.1, with network attack vector, low complexity, no privileges, and user interaction required.

Likely exposure

Exposure is most likely in legacy public or intranet deployments of MiniGal Nano 0.3.5 or earlier. The CVE data does not provide CPEs, deployment prevalence, or a named fixed version.

Exploitation context

The supplied sources do not indicate active exploitation, and the CVE is not listed as KEV. Exploitation requires user interaction, such as a victim opening attacker-controlled content that reaches the vulnerable application.

Researcher notes

Evidence supports CWE-79 reflected XSS tied specifically to dir handling in MiniGal Nano <=0.3.5. Patch status is unclear in the supplied sources, so remediation should be verified against vendor guidance or by confirming correct output encoding in code.

Mitigation direction

  • Inventory sites for MiniGal Nano and confirm installed versions.
  • Check vendor or maintainer guidance for a fixed release or official workaround.
  • If no maintained fix exists, replace or retire exposed MiniGal Nano deployments.
  • Ensure dir-derived output is HTML-encoded before rendering in responses.
  • Restrict access to vulnerable galleries until remediation is complete.

Validation and detection

  • Confirm whether index.php accepts a dir parameter in deployed instances.
  • Review error-message rendering for unencoded user-controlled directory values.
  • Test safely that supplied dir input is displayed as text, not executable content.
  • Inspect web logs for suspicious dir values containing markup or script indicators.
  • Verify remediation on every public and intranet gallery deployment.
Prepared
Confidence
high
Sources
5

Public sources used

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-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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.

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cve · low confidence lookup

CVE-2026-25868 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.1 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

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
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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
5.1CVSS 4.0MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

5.1Medium
CVSS 4.0 vector shape for CVE-2026-25868Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
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
MiniGalMiniGal Nano0unaffected
Weakness

CWE details

CWE-79

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