Skip to content
Noroxi
NVD / CVE Program· CNA Proofpoint

CVE-2023-0090: Proofpoint Enterprise Protection webservices unauthenticated RCE

Noroxi assessment

Priority: Monitor (action score 39/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.74% (FIRST EPSS); higher than 54.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: proofpoint enterprise_protection 8.13.22 patch 4566, 8.18.4 patch 4567, 8.18.6 patch 4568.

Low priority for now. Upgrade to proofpoint enterprise_protection 8.13.22 patch 4566, 8.18.4 patch 4567, 8.18.6 patch 4568 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The webservices in Proofpoint Enterprise Protection (PPS/POD) contain a vulnerability that allows for an anonymous user to execute remote code through 'eval injection'. Exploitation requires network access to the webservices API, but such access is a non-standard configuration. This affects all versions 8.20.0 and below.

CriticalCVSS 9.8 · v3.1—Proof of concept Fix available
Published
Mar 7, 2023
Updated
Jun 17, 2026
EPSS
0.7% · 54th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · Proofpoint
9.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-0090

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for proofpoint records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
proofpointenterprise protection

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • proofpoint enterprise protectionbefore 8.13.22
  • proofpoint enterprise protection8.18.0 and later · before 8.18.4
  • proofpoint enterprise protection8.18.6
  • proofpoint enterprise protection8.20.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Proofpoint). Independent of NVD's CPE analysis and usually ahead of it.

  • proofpoint enterprise_protection

    • 8.* and later · up to and including 8.20.0affected · semverfixed in 8.20.0 patch 4570, 8.18.6 patch 4568, 8.18.4 patch 4567, 8.13.22 patch 4566

Same product

proofpoint: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-46332Proofpoint Enterprise Protection (PPS/PoD) XSS in "Attachment Names"
    38Monitor
  • CVE-2023-0089Proofpoint Enterprise Protection webutils authenticated RCE
    35Monitor
  • CVE-2019-19680A file-extension filtering vulnerability in Proofpoint Enterprise Protection (PPS / PoD), in the unpatched versions of PPS through 8.9.22 an
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2022-46333Dec 6, 2022 · Proofpoint Enterprise Protection perl eval() arbitrary command execution
    28Monitor
  • ← EarlierCVE-2022-46334Dec 21, 2022 · Proofpoint Enterprise Protection Local Privilege Escalation
    31Monitor
  • Later →CVE-2023-5771Nov 6, 2023 · HTML injection in AdminUI through email subject
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
proofpoint enterprise_protection8.13.22 patch 4566Vendor (CNA)
proofpoint enterprise_protection8.18.4 patch 4567Vendor (CNA)
proofpoint enterprise_protection8.18.6 patch 4568Vendor (CNA)
proofpoint enterprise_protection8.20.0 patch 4570Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:12026-07-07

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+1217 d
  3. TodayNov 1, 2026+1334 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records