VDB
GHSA-3x8c-fmpc-5rmq
GHSA-3x8c-fmpc-5rmq
PUBLISHED
CVSS 6.099999904632568 MEDIUM
Cross-site scripting (XSS) vulnerability in the fallback authentication endpoint
Record from GitHub Advisory Database · Published October 16, 2020
matrix-synapse is fixed in 1.21.0 (PyPI)
Cross-site scripting (XSS) vulnerability in the fallback authentication endpoint
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| matrix-synapse | PyPI | 1.21.0 |
Risk scores
CVSS 3.1
6.099999904632568
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| PyPI | matrix-synapse | 0 |
| PyPI | matrix-synapse | 0 |
Timeline
- Oct 16, 2020 CVE Published
- Apr 7, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-3x8c-fmpc-5rmq
vulnetix vdb fixes GHSA-3x8c-fmpc-5rmqOr with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-3x8c-fmpc-5rmq/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- GitHub Advisory GHSA-3x8c-fmpc-5rmq vendor-advisory
- https://github.com/matrix-org/synapse package
- https://github.com/matrix-org/synapse/releases/tag/v1.21.2 url
- https://nvd.nist.gov/vuln/detail/CVE-2020-26891 advisory
- https://github.com/matrix-org/synapse/pull/8444 url
- https://matrix.org/blog/2020/10/15/synapse-1-21-2-released-and-security-advisory url
- https://github.com/matrix-org/synapse/releases url
- https://github.com/matrix-org/synapse/security/advisories/GHSA-3x8c-fmpc-5rmq url
- https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2020-238.yaml url