How severe is GHSA-3mqv-8gxg-pfm4?

GHSA-3mqv-8gxg-pfm4 has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-3mqv-8gxg-pfm4?

GHSA-3mqv-8gxg-pfm4 affects the following packages: com.twitter:twitter-server_2.12 (Maven). Ecosystems affected: Maven.

How do I fix GHSA-3mqv-8gxg-pfm4?

Update com.twitter:twitter-server_2.12 to 20.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3mqv-8gxg-pfm4 is resolved across your whole dependency graph.

How do I detect GHSA-3mqv-8gxg-pfm4 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.twitter:twitter-server_2.12. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-3mqv-8gxg-pfm4 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-3mqv-8gxg-pfm4?

O3 pinpoints whether GHSA-3mqv-8gxg-pfm4 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-3mqv-8gxg-pfm4 actively exploited in the wild?

No public exploit code has been indexed for GHSA-3mqv-8gxg-pfm4 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-3mqv-8gxg-pfm4?

GHSA-3mqv-8gxg-pfm4 has an EPSS (Exploit Prediction Scoring System) score of 87.4%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is GHSA-3mqv-8gxg-pfm4?

GHSA-3mqv-8gxg-pfm4 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for GHSA-3mqv-8gxg-pfm4?

A Nuclei detection template exists for GHSA-3mqv-8gxg-pfm4, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-3mqv-8gxg-pfm4 published, and has it been updated?

GHSA-3mqv-8gxg-pfm4 was published on February 9, 2022 and was last updated on November 8, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

GHSA-3mqv-8gxg-pfm4: twitter-server_2.12 Cross-Site Scripting…

EPSS Exploitation Probability

via FIRST.org ↗

87.4%probability of exploitation in next 30 days

Very High Risk100th percentile+5.50%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

☕com.twitter:twitter-server_2.12

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

server/handler/HistogramQueryHandler.scala in Twitter TwitterServer (aka twitter-server) before 20.12.0, in some configurations, allows XSS via the /histograms endpoint.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.twitter:twitter-server_2.12`	all versions	20.12.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.twitter:twitter-server_2.12. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update com.twitter:twitter-server_2.12 to 20.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3mqv-8gxg-pfm4 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-3mqv-8gxg-pfm4 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-3mqv-8gxg-pfm4. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

server/handler/HistogramQueryHandler.scala in Twitter TwitterServer (aka twitter-server) before 20.12.0, in some configurations, allows XSS via the /histograms endpoint.

O3 Security · Impact-Aware SCA

Is GHSA-3mqv-8gxg-pfm4 in your dependencies?

O3 detects GHSA-3mqv-8gxg-pfm4 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works

GHSA-3mqv-8gxg-pfm4