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CVE Record

CVE-2026-1247: Survey <= 1.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Settings

The Survey plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

MediumCVSS 4.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-1247 is a stored cross-site scripting issue in the WordPress Survey plugin up to version 1.1. An administrator-level user could save script content in plugin settings, causing it to run when affected pages are viewed. Business urgency is limited by the high privilege required and specific WordPress configuration conditions.

Executive priority

Treat as a focused cleanup item, not an emergency. Prioritize affected WordPress multisite environments and sites with many administrators. The risk is lower than unauthenticated flaws, but it can undermine trust in administrative controls and expose users viewing affected pages.

Technical view

The vulnerability is CWE-79 stored XSS caused by insufficient input sanitization and output escaping in Survey plugin admin settings. CVSS 3.1 is 4.4, with network access, high attack complexity, administrator privileges, no user interaction, and changed scope. The advisory says impact is limited to multisite installations and sites where unfiltered_html is disabled.

Likely exposure

Exposure is likely limited to WordPress sites using the Survey plugin version 1.1 or earlier, especially multisite deployments or sites that disable unfiltered_html. Single-site WordPress installations with normal administrator unfiltered_html behavior may not be affected according to the description.

Exploitation context

No active exploitation is indicated in the provided sources, and the CVE is not listed as KEV. Exploitation requires an authenticated administrator or higher, so the main concern is compromised admin accounts, malicious insiders, or constrained admin environments where script filtering is expected to work.

Researcher notes

The source bundle identifies version up to 1.1, but affected metadata also contains inconsistent fields. Public references point to WordPress plugin Trac files and Wordfence. No patch version or exploit-in-the-wild evidence is provided, so remediation should track vendor or repository updates rather than assuming a fixed release.

Mitigation direction

  • Identify WordPress sites running the Survey plugin and record installed versions.
  • Prioritize multisite installations and sites where unfiltered_html is disabled.
  • Check the plugin vendor or WordPress plugin repository for updated guidance or releases.
  • If no fix is available, consider disabling or removing the plugin where risk is unacceptable.
  • Restrict administrator access and review admin account security.

Validation and detection

  • Confirm whether Survey plugin version is 1.1 or earlier.
  • Determine whether WordPress multisite is enabled.
  • Determine whether unfiltered_html has been disabled.
  • Review Survey plugin settings for unexpected script content.
  • Monitor Wordfence and CVE records for updated remediation information.
Prepared
Confidence
medium
Sources
7

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-2026-1247 mapping review

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

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A: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
0Timeline events
0ADP providers
6Source links

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
4.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N1.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.4Medium
CVSS 3.1 vector shape for CVE-2026-1247Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
seosbgSurvey0unaffected
Weakness

CWE details

CWE-79

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