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CVE-2021-30183

24
FAUCET Score

CVE-2021-30183 describes a cleartext storage vulnerability in multiple versions of Octopus Server. During import or export operations, the password used for encryption/decryption was inadvertently written to logs in plaintext, potentially exposing sensitive information. With a CVSS score of 7.5 (High), this vulnerability has a low attack complexity and no user interaction required, allowing an unauthenticated attacker to achieve high confidentiality impact by accessing these logs. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2020.5.329CPE matchmatch criteria
cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*
>= 2020.6.0, < 2020.6.4847CPE matchmatch criteria
cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*
>= 2021.1.0, < 2021.1.6959CPE matchmatch criteria
cpe:2.3:a:octopus:server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 30th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

advisories.octopus.com / adv/2021-03---Cleartext-Storage-of-Sensitive-Information-%28CVE-2021-30183%29.1817083941.html
github.com / OctopusDeploy/Issues
Third Party Advisory