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MEDIUM severity

CVE-2020-2208 — slack-uploader

MEDIUM

CVE-2020-2208 is a medium-severity (CVSS 4.3) CWE-522 vulnerability in org.jenkins-ci.plugins:slack-uploader. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Secret stored in plain text by Jenkins Slack Upload Plugin

Also known asGHSA-656g-hf8v-x2rw
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk
0.00%0.40%0.79%1.19%0.0%0.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.jenkins-ci.plugins:slack-uploader

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

Jenkins Slack Upload Plugin 1.7 and earlier stores a secret unencrypted in job config.xml files on the Jenkins master where it can be viewed by users with Extended Read permission, or access to the master file system.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
☕Mavenorg.jenkins-ci.plugins:slack-uploaderall versionsNo fix

Affected Products

1 product · 1 configurations
Application
slack uploadjenkins
≤ 1.7
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:slack-uploader, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of org.jenkins-ci.plugins:slack-uploader for CVE-2020-2208. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    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.

Frequently Asked Questions

Jenkins Slack Upload Plugin 1.7 and earlier stores a secret unencrypted in job config.xml files on the Jenkins master where it can be viewed by users with Extended Read permission, or access to the master file system.
O3 Security · Impact-Aware SCA

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CVE-2020-2208: slack-uploader (Medium 4.3)