CVE-2020-11026: debian debian_linux Improper Neutralization
CVSS: 8.7v3.1HighModified
AliasesUBUNTU-CVE-2020-11026DEBIAN-CVE-2020-11026
Published 30-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-11026 is a high (CVSS 8.7) Improper Neutralization vulnerability in debian debian_linux. EPSS estimates a 2.09% chance of exploitation in the next 30 days, higher than 81.3% of scored vulnerabilities.
CVSS score
8.7/10
010
High · v3.1 (CVE.org)EPSS score
2.09%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 30-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).
CVSS metrics
6 scores · 5 sources · 2 versionsHigh 8.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NSources5 sources · 5.4–8.7
- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NDiffers
- wordfenceSource6.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NDiffers
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
2.09%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.09% on 19-09-2026
19-09-202619-10-2026
EPSS score2.09%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-707Improper NeutralizationThe product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')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.
Affected systems
Debian2 products
- wordpress< 5.4.1+dfsg1-1
- debian_linuxEOL8.0 | 9.0 | 10.0
Wordpress2 products
- wordpress< 3.7 (fixed in 3.7.33) | ≥ 3.7, ≤ 3.7.32 (fixed in 3.7.33) | ≥ 3.8, ≤ 3.8.32 (fixed in 3.7.33) | ≥ 3.9, ≤ 3.9.30 (fixed in 3.7.33) | ≥ 4.0, ≤ 4.0.29 (fixed in 3.7.33) | ≥ 4.1, ≤ 4.1.29 (fixed in 3.7.33) | ≥ 4.2, ≤ 4.2.26 (fixed in 3.7.33) | ≥ 4.3, ≤ 4.3.22 (fixed in 3.7.33) | ≥ 4.4, ≤ 4.4.21 (fixed in 3.7.33) | ≥ 4.5, ≤ 4.5.20 (fixed in 3.7.33) | ≥ 4.6, ≤ 4.6.17 (fixed in 3.7.33) | ≥ 4.7, ≤ 4.7.16 (fixed in 3.7.33) | ≥ 4.8, ≤ 4.8.12 (fixed in 3.7.33) | ≥ 4.9, ≤ 4.9.13 (fixed in 3.7.33) | ≥ 5.0, ≤ 5.0.8 (fixed in 3.7.33) | ≥ 5.1, ≤ 5.1.4 (fixed in 3.7.33) | ≥ 5.2, ≤ 5.2.5 (fixed in 3.7.33) | ≥ 5.3, ≤ 5.3.2 (fixed in 3.7.33) | 5.4 (fixed in 3.7.33)
- wordpress≥ 5.4.0, < 5.4.1 | ≥ 5.3.0, < 5.3.3 | ≥ 5.2.0, < 5.2.6 | ≥ 5.1.0, < 5.1.5 | ≥ 5.0.0, < 5.0.9 | ≥ 4.9.0, < 4.9.14 | ≥ 4.8.0, < 4.8.13 | ≥ 4.7.0, < 4.7.17 | ≥ 4.6.0, < 4.6.18 | ≥ 4.5.0, < 4.5.21 | ≥ 4.4.0, < 4.4.22 | ≥ 4.3.0, < 4.3.23 | ≥ 4.2.0, < 4.2.27 | ≥ 4.1.0, < 4.1.30 | ≥ 4.0.0, < 4.0.30 | ≥ 3.9.0, < 3.9.31 | ≥ 3.8.0, < 3.8.33 | ≥ 3.7.0, < 3.7.33 | ≥ 3.7, < 3.7.33 | ≥ 3.8, < 3.8.33 | ≥ 3.9, < 3.9.31 | ≥ 4.0, < 4.0.30 | ≥ 4.1, < 4.1.30 | ≥ 4.2, < 4.2.27 | ≥ 4.3, < 4.3.23 | ≥ 4.4, < 4.4.22 | ≥ 4.5, < 4.5.21 | ≥ 4.6, < 4.6.18 | ≥ 4.7, < 4.7.17 | ≥ 4.8, < 4.8.13 | ≥ 4.9, < 4.9.14 | ≥ 5.0, < 5.0.9 | ≥ 5.1, < 5.1.5 | ≥ 5.2, < 5.2.6 | ≥ 5.3, < 5.3.3 | 5.4
Ubuntu1 product
- wordpressAll versions (No fix recorded)
3 vendors · 5 products
References
8 links- wordpress.org/support/wordpress-version/version-5-4-1/X Refsource MISCREPORTRelease NotesVendor Advisory
- github.com/WordPress/wordpress-develop/security/advisories/GHSA-3gw2-4656-pfr2X Refsource CONFIRMREPORTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/05/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory