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CVE-2025-27156· NVD / CVE Program· CNA GitHub_M

Tuleap allows content injection via emails sent by the mass emailing features

Tuleap is an Open Source Suite to improve management of software developments and collaboration. The mass emailing features do not sanitize the content of the HTML emails. A malicious user could use this issue to facilitate a phishing attempt or to indirectly exploit issues in the recipients mail clients. This vulnerability is fixed in Tuleap Community Edition 16.4.99.1740567344 and Tuleap Enterprise Edition 16.4-6 and 16.3-11.

MediumCVSS 5.4 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Mar 4, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 17th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.4
CNA · GitHub_M
4.1
1.3 point gap

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

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

Affected systems

VendorProduct
enaleantuleap

Affected versions

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

  • enalean tuleapbefore 16.3-11
  • enalean tuleapbefore 16.4.99.1740567344
  • enalean tuleap16.4 and later · before 16.4-6

Versions reported by the vendor

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

  • Enalean tuleap

    • < 16.4.99.1740567344affected

Same product

enalean: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7411An issue was discovered in Enalean Tuleap 9.6 and prior versions.
    55Plan
  • CVE-2018-17298An issue was discovered in Enalean Tuleap before 10.5.
    40Plan
  • CVE-2018-7538A SQL injection vulnerability in the tracker functionality of Enalean Tuleap software engineering platform before 9.18 allows attackers to e
    40Plan
  • CVE-2017-7981Tuleap before 9.7 allows command injection via the PhpWiki 1.3.10 SyntaxHighlighter plugin.
    40Plan
  • CVE-2014-7178Enalean Tuleap before 7.5.99.6 allows remote attackers to execute arbitrary commands via the User-Agent header, which is provided to the pas
    39Monitor
  • CVE-2021-43806SQL injection in Tuleap
    35Monitor

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

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

Credits

All researchers

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

No credits in the CNA record.

Variant candidates

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

  • CVE-2024-5259985 days apartTuleap vulnerable to XSS in the Gantt chart of the tracker plugin
    21Monitor
  • CVE-2025-53541147 days apartTuleap is vulnerable to XSS attacks when displaying the children of a parent artifact
    21Monitor
  • CVE-2023-48715449 days apartTuleap vulnerable to Cross-site Scripting on the edition page of a release
    21Monitor
  • CVE-2025-270991 days apartTuleap allows XSS via the tracker names used in the semantic timeframe deletion message
    19Monitor
  • CVE-2025-3020327 days apartTuleap allows XSS via the content of RSS feeds in the RSS widgets
    19Monitor
  • CVE-2024-46980141 days apartTuleap vulnerable to XSS in the HTML mail content of the cross reference field
    19Monitor

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

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

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

CVSS vector

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

nvd-primary

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

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.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.

ATT&CK techniques

—

Change log

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

References

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

All records