NVD / CVE Program· CNA Octopus

CVE-2025-0513: In affected versions of Octopus Server error messages were handled unsafely on the error page.

Noroxi assessment

Priority: Monitor (action score 7/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. Special conditions such as timing or configuration are required.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In affected versions of Octopus Server error messages were handled unsafely on the error page. If an adversary could control any part of the error message they could embed code which may impact the user viewing the error message.

LowCVSS 1.8 · v4.0—No exploit No fix recorded

Published: Feb 11, 2025
Updated: Jun 17, 2026
EPSS: 0.2% · 15th percentile
CWE: CWE-79

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 7 / 40 · 1.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Octopus: 1.8; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
octopus	octopus server	cpe:2.3:a:octopus:octopus_server
linux	linux kernel	cpe:2.3:o:linux:linux_kernel
microsoft	windows	cpe:2.3:o:microsoft:windows

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

octopus octopus server2024.3.164 and later · before 2024.3.12985
octopus octopus server2024.4.401 and later · before 2024.4.6962

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Octopus). Independent of NVD's CPE analysis and usually ahead of it.

Octopus Deploy Octopus Server
- 2024.3.164 and later · before 2024.3.12985affected
- 2024.4.401 and later · before 2024.4.6962affected

Same product

octopus: all records

Other highest-scoring records for the same primary product.

CVE-2018-18850In Octopus Deploy 2018.8.0 through 2018.9.x before 2018.9.1, an authenticated user with permission to modify deployment processes could uplo
40Plan
CVE-2022-2572In affected versions of Octopus Server where access is managed by an external authentication provider, it was possible that the API key/keys
39Monitor
CVE-2022-2778In affected versions of Octopus Deploy it is possible to bypass rate limiting on login using null bytes.
39Monitor

Published before and after this one in the same product

← EarlierCVE-2025-0589Feb 11, 2025 · In affected versions of Octopus Deploy where customers are using Active Directory for authentication it was possible for an unauthenticated
27Monitor
← EarlierCVE-2025-0525Feb 11, 2025 · In affected versions of Octopus Server the preview import feature could be leveraged to identify the existence of a target file.
9Monitor
Later →CVE-2025-0526Feb 11, 2025 · In affected versions of Octopus Deploy it was possible to upload files to unexpected locations on the host using an API endpoint.
9Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Edward Prior (@JankhJankh)finder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-4456280 days apartIn affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Scripting payload on the audit page.
21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

OctopusBugcrowd · paid · up to $6,000

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
Administrator privileges are required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: High
Privileges required: High
User interaction: A
Scope: X

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1commentEl.innerHTML = comment.body;

Fixed

1commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

advisories.octopus.com/post/2024/sa2025-04/

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records