CVE-2023-49289 json
Cross-site Scripting in Ajax.NET Professional
published 2023-12-04 2 y ago modified 2026-06-17 4 mo ago also GHSA-8v6j-gc74-fmpp , EUVD-2023-3164
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
Ajax.NET Professional (AjaxPro) is an AJAX framework for Microsoft ASP.NET which will create proxy JavaScript classes that are used on client-side to invoke methods on the web server. Affected versions of this package are vulnerable cross site scripting attacks. Releases before version 21.12.22.1 are affected. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Patch / fix
- nuget AjaxNetProfessional 21.12.22.1
- michaelschwarz ajax.net_professional 21.12.22.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | AjaxNetProfessional | <21.12.22.1 |
21.12.22.1 |
Affected products
- michaelschwarz Ajax.NET-Professional
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/michaelschwarz/Ajax.NET-Professional/commit/c89e39b9679fcb8ab6644fe21cc7e652cb615e2b
web, patch
-
github.com
/michaelschwarz/Ajax.NET-Professional/security/advisories/GHSA-8v6j-gc74-fmpp
web, vendor-advisory
-
nuget.org
/packages/AjaxNetProfessional/
product
-
nvd.nist.gov
/vuln/detail/CVE-2023-49289
advisory
-
github.com
/michaelschwarz/Ajax.NET-Professional
package
-
nuget.org
/packages/AjaxNetProfessional
web
Sources
- CVE List CVE-2023-49289
- GitHub Advisory GHSA-8v6j-gc74-fmpp
- NVD CVE-2023-49289
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.