CVE-2026-125748 Parabol before 15.21.2 Missing Authorization via addReactjiToReactable Mutation
Medium 5.3
Published
Updated
Check this codebase for CVE-2026-125748 and fix it if it is affected.
What it is: CVE-2026-125748 is a medium-severity vulnerability in Parabol, published on 10 Nov 2026.
Exploitation: There is no known exploitation of CVE-2026-125748 in the wild and no public exploit code.
Affected product: Parabol. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-125748/ (Markdown: https://insights.sbomify.com/CVE-2026-125748/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-125748?
CVE-2026-125748 is a medium-severity vulnerability in Parabol, published on 10 Nov 2026.
Official description
Parabol before 15.21.2 contains a missing authorization vulnerability in the addReactjiToReactable GraphQL mutation that allows authenticated users to tamper with reactions on other organizations' content. Attackers can pair their own meetingId with a reactableId of another tenant's reflection, comment, or sequential team prompt response to add or remove their reactions.
Weakness: CWE-639
Which versions are affected by CVE-2026-125748?
How do I fix CVE-2026-125748?
No fix has been published for CVE-2026-125748 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-125748 being exploited?
There is no known exploitation of CVE-2026-125748 in the wild and no public exploit code.
Sources
Also known as GHSA-mxfq-hmm6-9phm.