How severe is CVE-2026-33541?

CVE-2026-33541 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-33541 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33541?

CVE-2026-33541 affects Wikitide Tsportal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33541?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33541 have an EU (EUVD) identifier?

Yes. CVE-2026-33541 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16398.

When was CVE-2026-33541 published?

CVE-2026-33541 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-33541

CVE-2026-33541 is a medium-severity vulnerability in Wikitide Tsportal with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16398
Weakness: CWE-400
Affected product: Wikitide Tsportal
Published: 2026-03-26
Last modified: 2026-06-17

Description

TSPortal is the WikiTide Foundation’s in-house platform used by the Trust and Safety team to manage reports, investigations, appeals, and transparency work. Prior to version 34, a flaw in TSPortal allowed attackers to create arbitrary user records in the database by abusing validation logic. While validation correctly rejected invalid usernames, a side effect within a validation rule caused user records to be created regardless of whether the request succeeded. This could be exploited to cause uncontrolled database growth, leading to a potential denial of service (DoS). Version 34 contains a fix for the issue.

Frequently asked questions

What is CVE-2026-33541?: TSPortal is the WikiTide Foundation’s in-house platform used by the Trust and Safety team to manage reports, investigations, appeals, and transparency work. Prior to version 34, a flaw in TSPortal allowed attackers to create arbitrary user records in the database by abusing validation logic. While validation correctly rejected invalid usernames, a side effect within a validation rule caused user records to be created regardless of whether the request succeeded. This could be exploited to cause uncontrolled database growth, leading to a potential denial of service (DoS). Version 34 contains a fix for the issue.
How severe is CVE-2026-33541?: CVE-2026-33541 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-33541 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33541?: CVE-2026-33541 affects Wikitide Tsportal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33541?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33541 have an EU (EUVD) identifier?: Yes. CVE-2026-33541 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16398.
When was CVE-2026-33541 published?: CVE-2026-33541 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://github.com/miraheze/TSPortal/security/advisories/GHSA-f346-8rp3-4h9h

Affected products (1)

cpe:2.3:a:wikitide:tsportal:*:*:*:*:*:*:*:*

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