Nextcloud Contacts up to 4.2.3/5.0.2 SVG cross site scripting
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
3.2 | $0-$5k | 0.00 |
A vulnerability was found in Nextcloud Contacts up to 4.2.3/5.0.2 (Cloud Software). It has been classified as problematic. This affects an unknown function of the component SVG Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:
Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. The unsanitized SVG is converted to a JavaScript blob (in memory data) that the Avatar can't render. Due to this constellation the missing sanitization does not seem to be exploitable. It is recommended that the Contacts app is upgraded to 5.0.3 or 4.2.4
The weakness was released 05/30/2023 as GHSA-hxr6-cx85-gcjx. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2023-33182 since 05/17/2023. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.
Upgrading to version 4.2.4 or 5.0.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔒VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.2VulDB Meta Temp Score: 3.2
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 2.9
CNA Vector (GitHub, Inc.): 🔒
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: Contacts 4.2.4/5.0.3
Patch: github.com
Timeline
05/17/2023 CVE reserved05/30/2023 Advisory disclosed
05/30/2023 VulDB entry created
05/30/2023 VulDB entry last update
Sources
Advisory: GHSA-hxr6-cx85-gcjxStatus: Confirmed
CVE: CVE-2023-33182 (🔒)
Entry
Created: 05/30/2023 08:12Changes: 05/30/2023 08:12 (53)
Complete: 🔍
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