WordPress up to 5.3.0 Block Editor cross site scripting
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.1 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in WordPress up to 5.3.0 (Content Management System). This affects an unknown functionality of the component Block Editor. 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:
In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.
The weakness was released 12/26/2019 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2019-16781 since 09/24/2019. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.
Upgrading to version 5.3.1 eliminates this vulnerability.
Entry connected to this vulnerability is available at 147770.
Product
Type
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: 5.2VulDB Meta Temp Score: 5.1
VulDB Base Score: 4.1
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.8
NVD Vector: 🔍
CNA Base Score: 5.8
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
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 |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: WordPress 5.3.1
Timeline
09/24/2019 🔍12/26/2019 🔍
12/27/2019 🔍
03/17/2024 🔍
Sources
Product: wordpress.comAdvisory: GHSA-pg4x-64rh-3c9v
Status: Not defined
CVE: CVE-2019-16781 (🔍)
See also: 🔍
Entry
Created: 12/27/2019 08:57Updated: 03/17/2024 11:23
Changes: 12/27/2019 08:57 (39), 12/27/2019 09:02 (12), 03/17/2024 11:15 (3), 03/17/2024 11:23 (19)
Complete: 🔍
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