Skip to content

CVE-2026-57957

is CVE-2026-57957real, exploitable, or a false positive? Here's the community verdict.

☆ Watch

signals

public sources

Exploited in wild
Not listed
CISA KEV
Base severity
4.7 Medium
CVSS
Exploitation prob.
n/a
FIRST EPSS
Weakness
CWE-942
CWE

Moderate signals. Triage by your actual exposure and reachability.

baseline read

auto · not a community verdict

Low signal — verdict needed

Few public signals point to active risk. Whether a scanner hit here is a true or false positive depends on your version and config — community verdicts decide.

Based on CVSS

Confirm or dispute →

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

Papermark through 0.22.0 contains a cross-origin resource sharing (CORS) misconfiguration vulnerability that allows unauthenticated remote attackers to perform credentialed cross-origin requests by exploiting the TUS-based viewer upload endpoint reflecting arbitrary request Origins with Access-Control-Allow-Credentials set to true. Attackers can lure authenticated victims to malicious pages that silently issue credentialed cross-origin requests to upload arbitrary files into victim datarooms and read credentialed responses.

References

NVD MITRE CVE.org

Published

Embed this verdict
TruePositive verdict for CVE-2026-57957
Markdown
[![TruePositive verdict](https://www.truepositive.app/cve/CVE-2026-57957/badge.svg)](https://www.truepositive.app/cve/CVE-2026-57957)
HTML
<a href="https://www.truepositive.app/cve/CVE-2026-57957"><img src="https://www.truepositive.app/cve/CVE-2026-57957/badge.svg" alt="TruePositive verdict for CVE-2026-57957"></a>

Live badge that updates automatically as the community verdict changes.

Community ground truth

Be the first practitioner to weigh in

So far this is only TruePositive's editorial baseline from public sources. Add your real-world verdict below — it becomes the signal the next person triaging this relies on.

🥇 The first 50 practitioners to contribute earn a Founding Contributor badge.

In your experience, is this finding real and exploitable?

0 verdicts
Not a real issue

No account needed. Anonymous verdicts post as an unverified signal. Log in to make yours verified and earn reputation.

Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

No notes yet. Be the first to share what you saw, or a fix that worked.

    Add a field note or remediationoptional
    Note type

    What are you adding?

    Markdown supported · minimum 20 characters.

    Related CVEs

    Same weakness: CWE-942.