CVE-2021-26072

mediumpriority · track · 31EPSS 0.412 · 99 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

41.2% (99th) EPSS

CVSS 4 · medium

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

The WidgetConnector plugin in Confluence Server and Confluence Data Center before version 5.8.6 allowed remote attackers to manipulate the content of internal network resources via a blind Server-Side Request Forgery (SSRF) vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-918USprimary

affected products (4)

Products and version ranges known to be affected.

Atlassian Confluence Data Centerunspecified → 5.8.6enisa_euvdEU
Atlassian Confluence Serverunspecified → 5.8.6enisa_euvdEU
atlassian confluence data center< 5.8.6nvdUScpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
atlassian confluence server< 5.8.6nvdUScpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-04-01modified 2026-06-17

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+4178 more

references (4)

External citations — patches, advisories, analysis.

https://jira.atlassian.com/browse/CONFSERVER-61399 cnnvd
https://nvd.nist.gov/vuln/detail/CVE-2021-26072 cnnvd
https://jira.atlassian.com/browse/CONFSERVER-61399 enisa_euvd
https://jira.atlassian.com/browse/CONFSERVER-61399Issue TrackingPatchVendor Advisorynvd

scry

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