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CVE Record

CVE-2026-9566: teableio teable Sign-up LoginPage.tsx cross site scripting

A vulnerability was identified in teableio teable up to 1.9.x. This impacts an unknown function of the file apps/nextjs-app/src/features/auth/pages/LoginPage.tsx of the component Sign-up. The manipulation of the argument redirect leads to cross site scripting. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. Upgrading to version release.2026-04-21T08-57-20Z.1513 will fix this issue. The affected component should be upgraded. The vendor confirms: "The default branch of teableio/teable is develop, and the reported login redirect issue has already been fixed there. The login redirect flow now validates the redirect parameter with isValidRedirectPath() before navigation, which blocks javascript:, data:, and cross-origin redirects."

MediumCVSS 5.3Not KEV-listed Updated
Discuss exposure Back to CVEs
Glexia's Take moderate

Analyst readout for executives and security teams

Plain-English summary

Teable sign-up login pages in versions up to 1.9.x can mishandle a redirect parameter, allowing cross-site scripting when a user is induced to follow a crafted login flow. The issue is remotely reachable but requires user interaction. The vendor says the redirect validation has been fixed in the named 2026-04-21 release.

Executive priority

Treat this as a near-term patching item, not an emergency unless Teable login is exposed to untrusted users at scale. Public exploit availability raises urgency, but the provided evidence indicates medium severity, user interaction, and no confirmed active exploitation.

Technical view

CVE-2026-9566 affects apps/nextjs-app/src/features/auth/pages/LoginPage.tsx in Teable. Manipulating the redirect argument can lead to DOM-based cross-site scripting and open redirect behavior. CVSS 4.0 is 5.3 with network attack vector, low complexity, no privileges, and required user interaction. The fix validates redirect paths with isValidRedirectPath() before navigation.

Likely exposure

Exposure is most likely for internet-accessible or user-facing Teable deployments running versions 1.0 through 1.9.x, especially where sign-up or login routes are reachable by untrusted users. The source bundle names the fixed release as release.2026-04-21T08-57-20Z.1513.

Exploitation context

The sources say the attack can be carried out remotely and that exploit material is publicly available. KEV status is false, and the provided sources do not confirm active exploitation in the wild. The CVSS vector requires user interaction, so practical impact depends on phishing or crafted-link exposure.

Researcher notes

There is a source inconsistency: the affected version list includes the named release, while the description and vendor statement identify that release as fixed. Prioritize the vendor statement and patch reference, and verify exact package or image provenance in the local environment.

Mitigation direction

  • Upgrade Teable to release.2026-04-21T08-57-20Z.1513 or later.
  • Confirm login redirects validate with isValidRedirectPath() before navigation.
  • Review vendor release notes and advisories for deployment-specific guidance.
  • Reduce exposure of sign-up/login routes where business requirements allow.
  • Monitor for suspicious login redirects until patching is complete.

Validation and detection

  • Inventory Teable instances and record exact deployed versions.
  • Check whether public login and sign-up routes are internet-accessible.
  • Verify the patched redirect validation exists in deployed LoginPage.tsx code.
  • Review logs for unusual redirect parameter usage around login flows.
  • Run authorized regression tests for login redirects after upgrading.
Prepared
Confidence
medium
Sources
8

Public sources used

Based on public source material and reviewed before publication.

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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cwe · medium confidence lookup

CWE-94: 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.

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cve · low confidence lookup

CVE-2026-9566 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 profile CVE Program record
Severity
Medium
CVSS
5.3 (4.0)
Known Exploited
No
Published

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

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.

4 CVSS vectors
6 Timeline events
1 ADP providers
8 Source links

SSVC decision data

CISA-ADP CISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

4 official scores

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.

Score Version Severity Vector Exploit Impact Source
5.3 CVSS 4.0 Medium CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P — — VulDB
5 CVSS 2.0 Medium AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:OF/RC:C 10 2.9 VulDB
4.3 CVSS 3.1 Medium CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C 2.8 1.4 VulDB
4.3 CVSS 3.0 Medium CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C 2.8 1.4 VulDB

Vulnerability scoring details

Base CVSS 4.0 score

5.3 Medium
CVSS 4.0 vector shape for CVE-2026-9566 Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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. Source timeline VulDB

    Advisory disclosed

  2. Source timeline VulDB

    VulDB entry created

  3. CVE reserved CVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timeline VulDB

    VulDB entry last update

  5. CVE published CVE Program

    The CVE record was published.

  6. CVE updated CVE Program

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

ADP provider summaries

CISA-ADP CISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

Vendor Product Version / package Status
teableio teable 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, release.2026-04-21T08-57-20Z.1513 Listed
Weakness

CWE details

CWE-79CWE-94

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation

Improper Neutralization of Input During Web Page Generation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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CWE-94 · source CWE mapping

CWE mapping pending import

This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.

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