Description
Impact
Authenticated users are able to exploit an XSS vulnerability when viewing previewed content.
Patches
Will be patched in 10.8.8, 13.5.3, 14.3.2 and 15.1.2.
Workarounds
None available.
EPSS Score
| Score |
Percentile |
|
0.21%
|
43.07% |
CVSS Scores
| Base score |
Version |
Severity |
Vector |
|
4.3
|
3.1 |
—
|
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Click to expand
- Attack vector (AV:N)
- Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
- Attack complexity (AC:L)
- Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
- Privileges required (PR:N)
- No account or special rights needed—anonymous or random user is enough.
- User interaction (UI:R)
- A real person has to do something—click, install, enable—otherwise it doesn’t land.
- Scope (S:U)
- Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
- Confidentiality (C:N)
- Doesn’t really leak secrets in a meaningful way.
- Integrity (I:L)
- Attackers could change some data, but it’s limited—not everything goes.
- Availability (A:N)
- Service keeps running; no real outage angle.
|
CWEs
| CWE id |
Name |
|
CWE-79
|
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') |
Affected packages (8)
Vulnerable version ranges and first patched releases as published by GitHub.
| Ecosystem |
Package |
Vulnerable range |
First patched |
Vulnerable functions |
| nuget |
Umbraco.Cms |
>= 10.8.7, < 10.8.8 |
10.8.8 |
—
|
| nuget |
Umbraco.Cms |
>= 11.0.0, < 13.5.3 |
13.5.3 |
—
|
| nuget |
Umbraco.Cms |
>= 14.0.0, < 14.3.2 |
14.3.2 |
—
|
| nuget |
Umbraco.Cms |
>= 15.0.0, < 15.1.2 |
15.1.2 |
—
|
| nuget |
Umbraco.Cms.Web.Common |
>= 11.0.0, < 13.5.3 |
13.5.3 |
—
|
| nuget |
Umbraco.Cms.Web.Common |
>= 14.0.0, < 14.3.2 |
14.3.2 |
—
|
| nuget |
Umbraco.Cms.Web.Common |
>= 15.0.0, < 15.1.2 |
15.1.2 |
—
|
| nuget |
Umbraco.Cms.Web.Common |
>= 10.8.7, < 10.8.8 |
10.8.8 |
—
|
cvelogic
Threat Intelligence