CVE-2020-25864

MEDIUMNVD 6.16.1—Elevated

6.1

HashiCorp Consul and Consul Enterprise up to version 1.9.4 key-value (KV) raw mode was vulnerable to cross-site scripting. Fixed in 1.9.5, 1.8.10 and 1.7.14.

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 99.0%
KEV: Not listed

Published

April 20, 2021

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://discuss.hashicorp.com/t/hcsec-2021-07-consul-api-kv-endpoint-vulnerable-to-cross-site-scripting/23368
cve@mitrehttps://security.gentoo.org/glsa/202208-09
cve@mitrehttps://www.hashicorp.com/blog/category/consul
af854a3a-2127-422b-91ae-364da2661108https://discuss.hashicorp.com/t/hcsec-2021-07-consul-api-kv-endpoint-vulnerable-to-cross-site-scripting/23368
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-09
af854a3a-2127-422b-91ae-364da2661108https://www.hashicorp.com/blog/category/consul

Affected Packages

(1 across 1 ecosystem)

Go(1)

Package	Vulnerable range	Fixed in	Dependents
github.com/hashicorp/consul	—	1.9.5	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 11× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-26 18:07 UTCEG score recompute
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-24 16:48 UTCepss_batch
2026-05-24 13:21 UTCOSV refresh

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2020/CVE-2020-25864.yaml
First seen Jan 1, 2020
HashiCorp Consul/Consul Enterprise <=1.9.4 - Cross-Site Scripting
Open source ↗

Frequently asked(5)

What is CVE-2020-25864?

CVE-2020-25864 is a medium vulnerability published on April 20, 2021. HashiCorp Consul and Consul Enterprise up to version 1.9.4 key-value (KV) raw mode was vulnerable to cross-site scripting. Fixed in 1.9.5, 1.8.10 and 1.7.14.

When was CVE-2020-25864 disclosed?

CVE-2020-25864 was first published in the National Vulnerability Database on April 20, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-25864 actively exploited?

CVE-2020-25864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-25864?

CVE-2020-25864 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2020-25864?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-25864, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-25864

Explore →

Is Your Infrastructure Affected by CVE-2020-25864?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2020-25864

📅 Published

🔄 Last Modified

🔗 References (6)