Outlook Web Access vulnerabilitiesRanked by how likely they are to be used.

Product3 versions
The short answer

Outlook Web Access is made by Microsoft. We track 5 published vulnerabilities in it, across 3 versions. None of them is on the list of flaws known to be exploited today. If you run Outlook Web Access, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Outlook Web Access vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Outlook Web Access's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Outlook Web Access flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 25%

    Cross-site scripting (XSS) vulnerability in Outlook Web Access (OWA) for Exchange Server 2003 SP2 allows remote attackers to inject arbitrary web script or HTML via unspecified HTML, a different vulnerability than...

    CVSS4.3Published8 Jul 2008
  2. 23%

    Outlook Web Access (OWA) in Microsoft Exchange Server 2013 SP1, Cumulative Update 11, and Cumulative Update 12 and 2016 Gold and Cumulative Update 1 does not properly restrict loading of IMG elements, which makes it...

    CVSS5.5Published16 Jun 2016
  3. 9.4%

    Microsoft Outlook 2003 and Outlook Web Access (OWA) 2003 do not properly display comma separated addresses in the From field in an e-mail message, which could allow remote attackers to spoof e-mail addresses.

    CVSS5.0Published2 May 2005
  4. 8.4%

    Cross-site request forgery (CSRF) vulnerability in Microsoft Outlook Web Access (owa/ev.owa) 2007 through SP2 allows remote attackers to hijack the authentication of e-mail users for requests that perform Outlook...

    CVSS6.8Published7 Sep 2010
  5. 1.5%

    Unspecified versions of Microsoft Outlook Web Access (OWA) use the Cache-Control: no-cache HTTP directive instead of no-store, which might cause web browsers that follow RFC-2616 to cache sensitive information.

    CVSS1.9Published12 May 2008
Precursor Intelligence

Running Outlook Web Access? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.

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FAQ

Common questions, answered plainly.

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We track 5 published vulnerabilities listed under the name Outlook Web Access, across 3 versions.

None of Outlook Web Access's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Outlook Web Access. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.