CVE-2022-21702: Cross site scripting in Grafana proxy
Vulnerability summary
CVE-2022-21702 is a medium (CVSS 6.5) vulnerability in fedoraproject fedora. EPSS estimates a 2.34% chance of exploitation in the next 30 days, higher than 83.6% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 7Timeline
- 08-02-2022PublishedVulnerability first disclosed.
- 22-04-2025Last modifiedVulnerability information updated.
Description
Grafana is an open-source platform for monitoring and observability. In affected versions an attacker could serve HTML content thru the Grafana datasource or plugin proxy and trick a user to visit this HTML page using a specially crafted link and execute a Cross-site Scripting (XSS) attack. The attacker could either compromise an existing datasource for a specific Grafana instance or either set up its own public service and instruct anyone to set it up in their Grafana instance. To be impacted, all of the following must be applicable. For the data source proxy: A Grafana HTTP-based datasource configured with Server as Access Mode and a URL set, the attacker has to be in control of the HTTP server serving the URL of above datasource, and a specially crafted link pointing at the attacker controlled data source must be clicked on by an authenticated user. For the plugin proxy: A Grafana HTTP-based app plugin configured and enabled with a URL set, the attacker has to be in control of the HTTP server serving the URL of above app, and a specially crafted link pointing at the attacker controlled plugin must be clocked on by an authenticated user. For the backend plugin resource: An attacker must be able to navigate an authenticated user to a compromised plugin through a crafted link. Users are advised to update to a patched version. There are no known workarounds for this vulnerability.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- OSV · GoEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:NDiffers
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- OSV · AlpineEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
2.34%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.34% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundGrafana
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- grafana≥ 2.0.1, < 8.3.6-r0
Fedoraproject1 product
- fedoraEOL34 | 35 | 36
Github.com/grafana1 product
- grafana≥ 2.0.0-beta1, < 7.5.15 | ≥ 8.0.0, < 8.3.5
Grafana1 product
- grafana≥ 2.0.0-beta1, < 7.5.15 | ≥ 2.0.1, < 7.5.15 | ≥ 8.0.0, < 8.3.5 | 2.0.0:beta1 | 2.0.0:beta3
Netapp1 product
Ubuntu1 product
- grafanaAll versions (No fix recorded)
6 vendors · 6 products
References
17 links- github.com/grafana/grafana/security/advisories/GHSA-xc3p-28hw-q24gX Refsource CONFIRMWEBExploitMitigationRelease NotesThird Party Advisory
- github.com/grafana/grafana/commit/27726868b3d7c613844b55cd209ca93645c99b85X Refsource MISCWEBPatchThird Party Advisory
- grafana.com/blog/2022/02/08/grafana-7.5.15-and-8.3.5-released-with-moderate-severity-security-fixes/X Refsource MISCRelease NotesVendor Advisory
Show all 17 references
- github.com/grafana/grafanaPACKAGE