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CVE-2025-48366· NVD / CVE Program· CNA GitHub_M

GroupOffice's Blind Stored XSS in Phone Number Field Enables Forced Redirect and Unauthorized Actions

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a stored and blind XSS vulnerability exists in the Phone Number field of the user profile within the GroupOffice application. This allows a malicious actor to inject persistent JavaScript payloads, which are triggered in the context of another user when they view the Address Book. Successful exploitation enables actions such as forced redirects, unauthorized fetch requests, or other arbitrary JavaScript execution without user interaction. Versions 6.8.119 and 25.0.20 contain a fix for the issue.

MediumCVSS 6.9 · v4.0—No exploit No fix recorded

Noroxi analysis

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Published
May 22, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 17th percentile
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Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
6.9
NVD has not scored this yet; the score shown is the CNA’s.

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

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

Affected systems

VendorProduct
intermeshgroup-office

Affected versions

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

  • intermesh group-officebefore 6.8.199
  • intermesh group-office25.0.1 and later · before 25.0.20

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.

  • Intermesh groupoffice

    • < 6.8.119, < 25.0.20affected

Same product

intermesh: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-34838Group-Office: Authenticated Remote Code Execution via PHP Insecure Deserialization in `AbstractSettingsCollection`
    39Monitor
  • CVE-2026-27947Group-Office Vulnerable to Remote Code Execution (RCE)
    37Monitor
  • CVE-2026-33755Authenticated SQL Injection in Contact/query addressBookIds filter
    35Monitor
  • CVE-2010-3428SQL injection vulnerability in modules/notes/json.php in Intermesh Group-Office 3.5.9 allows remote attackers to execute arbitrary SQL comma
    30Monitor
  • CVE-2026-27832Group-Office Has Authenticated SQL Injection in advancedQueryData.comparator
    28Monitor
  • CVE-2025-48368GroupOffice's DOM-Based XSS in all Date Input Fields Allows Arbitrary JavaScript Execution
    23Monitor

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.

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.

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-2025-483680 days apartGroupOffice's DOM-Based XSS in all Date Input Fields Allows Arbitrary JavaScript Execution
    23Monitor
  • CVE-2025-483690 days apartGroupOffice vulnerable to Stored XSS in Tasks Comment Section
    21Monitor
  • CVE-2025-4899325 days apartGroup-Office vulnerable to reflected XSS via Look and Feel Formatting input
    21Monitor
  • CVE-2025-4899225 days apartGroup-Office vulnerable to blind XSS
    20Monitor
  • CVE-2026-30238288 days apartGroup-Office: Reflected XSS in JavaScript context
    20Monitor
  • CVE-2026-30237288 days apartGroup-Office: Self XSS in GroupOffice Installer License Page (install/license.php)
    8Monitor

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.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
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:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/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

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