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🛡️ CVE-2026-29788 — tsportal

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-1287 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

TSPortal: Any user can forge self-deletion requests for any account

Summary

Conversion of empty strings to null allows disguising DPA reports as genuine self-deletion reports.

Details

Creating a DPA report about another user and leaving the evidence field empty causes that report to look like the reported user self-requested deletion of their data. Ingenuine report is not distinguishable from a genuine one.

This can be prevented by disabling [convertEmptyStringsToNull](https://api.laravel.com/docs/12.x/Illuminate/Foundation/Configuration/Middleware.html#method_convertEmptyStringsToNull) in the middleware, or by validating evidence in Http/Controllers/DPAController::store() to not be empty.

PoC

New DPA report -> Select "...someone who I suspect is under the age of 13" for the "The above username is..." field -> Add nothing to the "Evidence" field -> Submit

Impact

Potential unauthorized deletion of any arbitrary user's data both in the current system (TSPortal) and subsequent systems if actioned.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2026-29788 is classified as CWE-1287: Improper Validation of Specified Type of Input. The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.

Affected software

CVE-2026-29788 is recorded against 2 packages.

  • miraheze/ts-portal (fixed in 30)
  • tsportal (fixed in 30)

Timeline and source

Published on 27 March 2026 and last revised on 9 April 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
api.laravel.com (Web)
github.com (Package)
issue-tracker.miraheze.org (Web)

Other advisories for this package

miraheze/ts-portal has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-1287: Improper Validation of Specified Type of Input) in other software:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-1287
Public Exploit ✅ No
Source NVD
Published 2026-03-27
Updated 2026-08-20
Modified 2026-04-09
Fix URL N/A

Affected Packages

Software From version Fixed in
miraheze/ts-portal — 30
tsportal — 30

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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