Security readout for executives and security teams
Plain-English summary
TimThumb versions before 1.15 had a cross-site scripting issue in its error display handling. If an exposed site uses an old embedded timthumb.php file, an attacker may be able to make the site return attacker-controlled script or HTML. The public source bundle does not provide severity, CVSS, exact products, or active exploitation evidence.
Executive priority
Prioritize as a legacy web hygiene issue with uncertain severity. It is not KEV-listed in the supplied data, but public-facing XSS can affect customer trust, session security, and brand integrity if vulnerable copies remain online.
Technical view
CVE-2010-5303 is an XSS flaw in displayError in timthumb.php before TimThumb 1.15 (r85). The CVE says remote attackers can inject arbitrary web script or HTML through unspecified vectors related to $errorString. Product embedding is described only as multiple products, with no CPEs or affected product list.
Likely exposure
Exposure is most likely on public websites, themes, plugins, or legacy application code that bundled timthumb.php before 1.15. The source bundle does not identify specific vendors or products, so exposure must be determined by local inventory and code inspection.
Exploitation context
The CVE describes remote attacker-controlled script or HTML injection, but the provided sources do not name exploit techniques, real-world exploitation, or KEV listing. Treat this as a public web exposure concern when legacy TimThumb is reachable.
Researcher notes
Key evidence is limited to the CVE description and a TimThumb source reference. The vector is unspecified, no CVSS is provided, and affected products are not enumerated. Avoid assuming impact beyond XSS in TimThumb before 1.15.
Mitigation direction
- Inventory all deployed copies of timthumb.php and embedded TimThumb libraries.
- Update or replace TimThumb versions older than 1.15 where vendor guidance supports it.
- Remove unused public TimThumb endpoints from web-accessible paths.
- Check upstream theme, plugin, or product advisories for supported remediation.
- Prioritize externally reachable websites and customer-facing domains first.
Validation and detection
- Confirm whether timthumb.php exists in web roots, themes, plugins, or vendor bundles.
- Identify TimThumb version or revision metadata where available.
- Review displayError handling for untrusted error strings reaching HTML output.
- Verify public routing does not expose obsolete TimThumb files.
- Document unknown versions as potentially affected until proven otherwise.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CVE-2010-5303 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://code.google.com/p/timthumb/source/detail?r=88CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.