CVE-2020-28035

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

9.8 CriticalFix available

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

4.25%Up 2.8 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: CVE-2020-28035
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: CVE-2020-28035
Updated: 2026-11-02

EUVDEUVD-2020-20526 No score

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: EUVD-2020-20526
Updated: 2026-11-03

GitHub AdvisoriesGHSA-94cf-q7rf-65xg 9.8

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: GHSA-94cf-q7rf-65xg
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-269
Updated: 2026-11-02

OSV 9.8

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: CVE-2020-28035
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-28035 9.8

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: DEBIAN-CVE-2020-28035
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-28035 9.8

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: UBUNTU-CVE-2020-28035
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVBIT-wordpress-2020-28035 No score

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: BIT-wordpress-2020-28035
Updated: 2026-11-02

OSVBIT-wordpress-multisite-2020-28035 No score

WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.

Record: BIT-wordpress-multisite-2020-28035
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`wordpress` Bitnami	before 5.5.2	5.5.2
`wordpress-multisite` Bitnami	before 5.5.2	5.5.2
`wordpress` Debian:12	before 5.5.3+dfsg1-1	5.5.3+dfsg1-1
`wordpress` Debian:13	before 5.5.3+dfsg1-1	5.5.3+dfsg1-1
`wordpress` Debian:14	before 5.5.3+dfsg1-1	5.5.3+dfsg1-1
`wordpress` Debian:9 From an advisory covering 9 CVEs	before 4.7.19+dfsg-1+deb9u1, plus listed versions 4.7.18+dfsg-1+deb9u14.7.5+dfsg-24.7.5+dfsg-2+deb9u14.7.5+dfsg-2+deb9u1~bpo8+14.7.5+dfsg-2+deb9u2 Show 5 moreShow less 4.7.5+dfsg-2+deb9u2~bpo8+14.7.5+dfsg-2+deb9u34.7.5+dfsg-2+deb9u44.7.5+dfsg-2+deb9u54.7.5+dfsg-2+deb9u6	4.7.19+dfsg-1+deb9u1
`wordpress` Debian:10 From an advisory covering 9 CVEs	before 5.0.11+dfsg1-0+deb10u1, plus listed versions 5.0.10+dfsg1-0+deb10u15.0.4+dfsg1-15.0.4+dfsg1-1+deb10u15.0.4+dfsg1-1+deb10u2	5.0.11+dfsg1-0+deb10u1
`wordpress` Ubuntu:16.04:LTS	All versions, plus listed versions 4.3+dfsg-14.3.1+dfsg-14.4+dfsg-14.4.1+dfsg-14.4.2+dfsg-14.4.2+dfsg-1ubuntu1	None known
`wordpress` Ubuntu:18.04:LTS	All versions, plus listed versions 4.8.2+dfsg-24.8.3+dfsg-14.9.1+dfsg-14.9.2+dfsg-14.9.4+dfsg-14.9.5+dfsg1-1	None known
`wordpress` Ubuntu:20.04:LTS	All versions, plus listed versions 5.2.2+dfsg1-15.2.4+dfsg1-15.3.2+dfsg1-15.3.2+dfsg1-1ubuntu1	None known

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Affected packages
Package	Affected	Fixed
`wordpress` Ubuntu:22.04:LTS	All versions, plus listed versions 5.7.1+dfsg1-2ubuntu15.8.1+dfsg1-2ubuntu15.8.2+dfsg1-1ubuntu15.8.3+dfsg1-1ubuntu15.8.3+dfsg1-1ubuntu1.1	None known
`wordpress` Ubuntu:24.04:LTS	All versions, plus listed versions 6.2+dfsg1-1ubuntu16.4.3+dfsg1-1ubuntu1	None known
`wordpress` Ubuntu:25.10	All versions, plus listed versions 6.7.2+dfsg1-1.1ubuntu1	None known
`wordpress` Ubuntu:26.10	All versions, plus listed versions 6.7.2+dfsg1-1.1ubuntu2	None known
`wordpress` Ubuntu:26.04:LTS	All versions, plus listed versions 6.7.2+dfsg1-1.1ubuntu16.7.2+dfsg1-1.1ubuntu2	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-28035 is a critical vulnerability (CVSS 9.8) in Wordpress, published October 31, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.25%, the 91st percentile. Fixed in wordpress 5.5.2.

References

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