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CVE-2025-27441· NVD / CVE Program· CNA Zoom

Zoom Workplace Apps - Cross Site Scripting

Cross site scripting in some Zoom Workplace Apps may allow an unauthenticated user to conduct a loss of integrity via adjacent network access.

MediumCVSS 5.2 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Apr 8, 2025
Updated
Jun 17, 2026
EPSS
0.3% · 16th percentile
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Report tools

JSON

Action score

20

Monitor

Low priority for now.

CVSS
20 / 40 · 5.2 / 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
5.2
CNA · Zoom
4.6
0.6 point gap

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/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
zoommeeting software development kit
zoomrooms
zoomrooms controller
zoomworkplace
zoomworkplace desktop
zoomworkplace virtual desktop infrastructure

Affected versions

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

  • zoom meeting software development kitbefore 6.3.0
  • zoom meeting software development kitbefore 6.3.10
  • zoom roomsbefore 6.4.0
  • zoom rooms controllerbefore 6.4.0
  • zoom workplacebefore 6.3.10
  • zoom workplace desktopbefore 6.3.10
  • zoom workplace virtual desktop infrastructurebefore 6.1.16
  • zoom workplace virtual desktop infrastructure6.1.17 and later · before 6.2.12

Versions reported by the vendor

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

  • Zoom Communications, Inc Zoom Workplace Apps

    • See references.affected

Same product

zoom: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-24691Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for Windows - Improper Input Validation
    40Plan
  • CVE-2025-62484Zoom Workplace Clients - Inefficient Regular Expression Complexity
    39Monitor
  • CVE-2025-64741Zoom Workplace for Android - Improper Authorization Handling
    39Monitor
  • CVE-2025-0147Zoom Workplace App for Linux - Type Confusion
    39Monitor
  • CVE-2025-49457Zoom Clients for Windows - Untrusted Search Path
    35Monitor
  • CVE-2025-27440Zoom Apps - Heap-based Buffer Overflow
    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.

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-2025-3066436 days apartZoom Workplace Apps - Cross-site Scripting
    32Monitor
  • CVE-2025-49461154 days apartZoom Workplace Clients - Cross-site Scripting
    29Monitor
  • CVE-2025-4678636 days apartZoom Workplace Apps - Cross-site Scripting
    24Monitor
  • CVE-2025-62482219 days apartZoom Workplace for Windows - Cross-site Scripting
    24Monitor
  • CVE-2025-274420 days apartZoom Workplace Apps - Cross Site Scripting
    20Monitor

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

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • 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
Adjacent
Attack complexity
Low
Privileges required
None
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:A/AC:L/PR:N/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