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CVE Record

CVE-2023-6598: SpeedyCache <= 1.1.3 - Missing Authorization to Plugin Options Update

The SpeedyCache plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the speedycache_save_varniship, speedycache_img_update_settings, speedycache_preloading_add_settings, and speedycache_preloading_delete_resource functions in all versions up to, and including, 1.1.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to update plugin options.

MediumCVSS 4.3Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a WordPress plugin authorization flaw. Sites using SpeedyCache up to version 1.1.3 may let any logged-in user, including subscribers, change certain plugin settings. The business risk is configuration tampering rather than direct data theft or full compromise based on the provided sources.

Executive priority

Treat this as a routine but real WordPress hygiene issue. Prioritize internet-facing sites with user registration, membership features, or many low-privileged accounts. It is not described as actively exploited in the provided sources.

Technical view

CVE-2023-6598 is a CWE-862 missing authorization issue in SpeedyCache functions handling Varnish IP, image settings, and preloading settings/resource updates. The CVSS 3.1 score is 4.3, with low-privileged authenticated access required and limited integrity impact.

Likely exposure

Exposure is likely limited to WordPress sites running SpeedyCache versions up to and including 1.1.3, especially sites allowing public registration or many subscriber-level accounts.

Exploitation context

The source bundle does not show CISA KEV listing or cited active exploitation. Attackers need authenticated subscriber-level access or higher and can update plugin options, not directly read data or cause availability loss per CVSS.

Researcher notes

The provided affected metadata appears inconsistent, but the title and description state all versions up to and including 1.1.3 are vulnerable. Avoid assuming broader impact beyond plugin option modification unless vendor sources confirm it.

Mitigation direction

  • Inventory WordPress sites using SpeedyCache and record installed versions.
  • Update SpeedyCache using official vendor or WordPress plugin guidance.
  • Disable SpeedyCache if no fixed version is available and risk is unacceptable.
  • Restrict unnecessary subscriber accounts and public user registration.
  • Review SpeedyCache settings for unauthorized changes.

Validation and detection

  • Confirm whether SpeedyCache version is 1.1.3 or older.
  • Check WordPress for public registration and low-privileged user counts.
  • Review audit logs for plugin settings changes by non-admin users.
  • Compare SpeedyCache configuration against known-good backups.
  • For code review, verify capability checks exist around affected functions.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-862: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2023-6598 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.3Medium
CVSS 3.1 vector shape for CVE-2023-6598Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
softaculousSpeedyCache – Cache, Optimization, Performance0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.